3125621400 has 96 divisors (see below), whose sum is σ = 10570305600. Its totient is φ = 757724800.

The previous prime is 3125621399. The next prime is 3125621413. The reversal of 3125621400 is 41265213.

It is a super-2 number, since 2×3125621400² = 19539018272275920000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230190 + ... + 243389.

It is an arithmetic number, because the mean of its divisors is an integer number (110107350).

Almost surely, 2^3125621400 is an apocalyptic number.

3125621400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3125621400 is an abundant number, since it is smaller than the sum of its proper divisors (7444684200).

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

3125621400 is a wasteful number, since it uses less digits than its factorization.

3125621400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473609 (or 473600 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 3125621400 is about 55907.2571317893. The cubic root of 3125621400 is about 1462.1057685305.

Adding to 3125621400 its reverse (41265213), we get a palindrome (3166886613).

The spelling of 3125621400 in words is "three billion, one hundred twenty-five million, six hundred twenty-one thousand, four hundred".