400947395 has 8 divisors (see below), whose sum is σ = 483919056. Its totient is φ = 318903136.

The previous prime is 400947347. The next prime is 400947401. The reversal of 400947395 is 593749004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400947395 - 2⁶ = 400947331 is a prime.

It is a Duffinian 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, 230897 + ... + 232626.

It is an arithmetic number, because the mean of its divisors is an integer number (60489882).

Almost surely, 2^400947395 is an apocalyptic number.

400947395 is a deficient number, since it is larger than the sum of its proper divisors (82971661).

400947395 is a wasteful number, since it uses less digits than its factorization.

400947395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463701.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 400947395 is about 20023.6708672511. The cubic root of 400947395 is about 737.3875465810.

The spelling of 400947395 in words is "four hundred million, nine hundred forty-seven thousand, three hundred ninety-five".