1400729000 has 128 divisors (see below), whose sum is σ = 3699820800. Its totient is φ = 491680000.

The previous prime is 1400728981. The next prime is 1400729009. The reversal of 1400729000 is 9270041.

It is not an unprimeable number, because it can be changed into a prime (1400729009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 316805 + ... + 321195.

It is an arithmetic number, because the mean of its divisors is an integer number (28904850).

Almost surely, 2^1400729000 is an apocalyptic number.

1400729000 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 1400729000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1849910400).

1400729000 is an abundant number, since it is smaller than the sum of its proper divisors (2299091800).

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

1400729000 is a wasteful number, since it uses less digits than its factorization.

1400729000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4452 (or 4438 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1400729000 is about 37426.3142721802. The cubic root of 1400729000 is about 1118.8830808262.

Adding to 1400729000 its reverse (9270041), we get a palindrome (1409999041).

The spelling of 1400729000 in words is "one billion, four hundred million, seven hundred twenty-nine thousand".