140001400 has 96 divisors (see below), whose sum is σ = 405866880. Its totient is φ = 43632000.

The previous prime is 140001359. The next prime is 140001401. The reversal of 140001400 is 4100041.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140001401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10855 + ... + 19945.

It is an arithmetic number, because the mean of its divisors is an integer number (4227780).

Almost surely, 2^140001400 is an apocalyptic number.

140001400 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 140001400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202933440).

140001400 is an abundant number, since it is smaller than the sum of its proper divisors (265865480).

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

140001400 is a wasteful number, since it uses less digits than its factorization.

140001400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9125 (or 9116 counting only the distinct ones).

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

The square root of 140001400 is about 11832.2187268492. The cubic root of 140001400 is about 519.2511410107.

Adding to 140001400 its reverse (4100041), we get a palindrome (144101441).

It can be divided in two parts, 14000 and 1400, that added together give a triangular number (15400 = T₁₇₅).

The spelling of 140001400 in words is "one hundred forty million, one thousand, four hundred".