400888268 has 24 divisors (see below), whose sum is σ = 766027584. Its totient is φ = 182056400.

The previous prime is 400888261. The next prime is 400888309. The reversal of 400888268 is 862888004.

It is a super-2 number, since 2×400888268² = 321422806840079648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (400888261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54023 + ... + 60993.

It is an arithmetic number, because the mean of its divisors is an integer number (31917816).

Almost surely, 2^400888268 is an apocalyptic number.

It is an amenable number.

400888268 is a deficient number, since it is larger than the sum of its proper divisors (365139316).

400888268 is a wasteful number, since it uses less digits than its factorization.

400888268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8293 (or 8291 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 44.

The square root of 400888268 is about 20022.1943852316. The cubic root of 400888268 is about 737.3512977219.

The spelling of 400888268 in words is "four hundred million, eight hundred eighty-eight thousand, two hundred sixty-eight".