400028226880 has 56 divisors (see below), whose sum is σ = 952632344160. Its totient is φ = 160000350720.

The previous prime is 400028226877. The next prime is 400028226893. The reversal of 400028226880 is 88622820004.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5960551 + ... + 6027289.

It is an arithmetic number, because the mean of its divisors is an integer number (17011291860).

Almost surely, 2^400028226880 is an apocalyptic number.

400028226880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400028226880 is an abundant number, since it is smaller than the sum of its proper divisors (552604117280).

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

400028226880 is a wasteful number, since it uses less digits than its factorization.

400028226880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85487 (or 85477 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The spelling of 400028226880 in words is "four hundred billion, twenty-eight million, two hundred twenty-six thousand, eight hundred eighty".