400365142452 has 72 divisors (see below), whose sum is σ = 1104155619840. Its totient is φ = 121309758720.

The previous prime is 400365142433. The next prime is 400365142547. The reversal of 400365142452 is 254241563004.

400365142452 is a `hidden beast` number, since 4 + 0 + 0 + 3 + 65 + 142 + 452 = 666.

It is a super-2 number, since 2×400365142452² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 4030924 + ... + 4129052.

It is an arithmetic number, because the mean of its divisors is an integer number (15335494720).

Almost surely, 2^400365142452 is an apocalyptic number.

It is an amenable number.

400365142452 is an abundant number, since it is smaller than the sum of its proper divisors (703790477388).

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

400365142452 is a wasteful number, since it uses less digits than its factorization.

400365142452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108453 (or 108448 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 400365142452 in words is "four hundred billion, three hundred sixty-five million, one hundred forty-two thousand, four hundred fifty-two".