400525230523400 has 96 divisors (see below), whose sum is σ = 932548784932800. Its totient is φ = 159981715296000.

The previous prime is 400525230523387. The next prime is 400525230523409. The reversal of 400525230523400 is 4325032525004.

It is a super-2 number, since 2×400525230523400² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400525230523409) 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, 2209667174 + ... + 2209848426.

It is an arithmetic number, because the mean of its divisors is an integer number (9714049843050).

Almost surely, 2^{400525230523400} is an apocalyptic number.

400525230523400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400525230523400 is an abundant number, since it is smaller than the sum of its proper divisors (532023554409400).

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

400525230523400 is a wasteful number, since it uses less digits than its factorization.

400525230523400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196959 (or 196950 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 35.

The spelling of 400525230523400 in words is "four hundred trillion, five hundred twenty-five billion, two hundred thirty million, five hundred twenty-three thousand, four hundred".