40325120400 has 60 divisors (see below), whose sum is σ = 129174806192. Its totient is φ = 10753365120.

The previous prime is 40325120399. The next prime is 40325120401. The reversal of 40325120400 is 402152304.

It is an interprime number because it is at equal distance from previous prime (40325120399) and next prime (40325120401).

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×40325120400² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40325120401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16800934 + ... + 16803333.

Almost surely, 2^40325120400 is an apocalyptic number.

40325120400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40325120400 is an abundant number, since it is smaller than the sum of its proper divisors (88849685792).

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

40325120400 is a wasteful number, since it uses less digits than its factorization.

40325120400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33604288 (or 33604277 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 40325120400 its reverse (402152304), we get a palindrome (40727272704).

The spelling of 40325120400 in words is "forty billion, three hundred twenty-five million, one hundred twenty thousand, four hundred".