400929023 has 12 divisors (see below), whose sum is σ = 441843024. Its totient is φ = 363528000.

The previous prime is 400929019. The next prime is 400929041. The reversal of 400929023 is 320929004.

It is not a de Polignac number, because 400929023 - 2² = 400929019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400929043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44390 + ... + 52652.

It is an arithmetic number, because the mean of its divisors is an integer number (36820252).

Almost surely, 2^400929023 is an apocalyptic number.

400929023 is a deficient number, since it is larger than the sum of its proper divisors (40914001).

400929023 is a wasteful number, since it uses less digits than its factorization.

400929023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8686 (or 8675 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 400929023 is about 20023.2121049546. The cubic root of 400929023 is about 737.3762836812.

The spelling of 400929023 in words is "four hundred million, nine hundred twenty-nine thousand, twenty-three".