400271792 has 10 divisors (see below), whose sum is σ = 775526628. Its totient is φ = 200135888.

The previous prime is 400271791. The next prime is 400271849. The reversal of 400271792 is 297172004.

It is not an unprimeable number, because it can be changed into a prime (400271791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12508478 + ... + 12508509.

Almost surely, 2^400271792 is an apocalyptic number.

It is an amenable number.

400271792 is a deficient number, since it is larger than the sum of its proper divisors (375254836).

400271792 is a wasteful number, since it uses less digits than its factorization.

400271792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25016995 (or 25016989 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 400271792 is about 20006.7936461593. The cubic root of 400271792 is about 736.9731436596.

The spelling of 400271792 in words is "four hundred million, two hundred seventy-one thousand, seven hundred ninety-two".