400027896 has 40 divisors (see below), whose sum is σ = 1120450320. Its totient is φ = 133342416.

The previous prime is 400027883. The next prime is 400027897. The reversal of 400027896 is 698720004.

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

It is a self number, because there is not a number n which added to its sum of digits gives 400027896.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400027897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 308016 + ... + 309311.

It is an arithmetic number, because the mean of its divisors is an integer number (28011258).

Almost surely, 2^400027896 is an apocalyptic number.

It is an amenable number.

400027896 is an abundant number, since it is smaller than the sum of its proper divisors (720422424).

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

400027896 is a wasteful number, since it uses less digits than its factorization.

400027896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617345 (or 617332 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 400027896 is about 20000.6973878413. The cubic root of 400027896 is about 736.8234276204.

The spelling of 400027896 in words is "four hundred million, twenty-seven thousand, eight hundred ninety-six".