1401400000 has 504 divisors, whose sum is σ = 4750289712. Its totient is φ = 403200000.

The previous prime is 1401399997. The next prime is 1401400001. The reversal of 1401400000 is 41041.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 1401400000.

It is not an unprimeable number, because it can be changed into a prime (1401400001) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 107799994 + ... + 107800006.

It is an arithmetic number, because the mean of its divisors is an integer number (9425178).

Almost surely, 2^1401400000 is an apocalyptic number.

1401400000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1401400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2375144856).

1401400000 is an abundant number, since it is smaller than the sum of its proper divisors (3348889712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1401400000 is an equidigital number, since it uses as much as digits as its factorization.

1401400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1401400000 is about 37435.2774799386. The cubic root of 1401400000 is about 1119.0617141657.

Adding to 1401400000 its reverse (41041), we get a palindrome (1401441041).

It can be divided in two parts, 140 and 1400000, that multiplied together give a square (196000000 = 14000²).

The spelling of 1401400000 in words is "one billion, four hundred one million, four hundred thousand".