400906934 has 8 divisors (see below), whose sum is σ = 604476840. Its totient is φ = 199414656.

The previous prime is 400906907. The next prime is 400906949. The reversal of 400906934 is 439609004.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 400906894 and 400906903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518924 + ... + 519695.

It is an arithmetic number, because the mean of its divisors is an integer number (75559605).

Almost surely, 2^400906934 is an apocalyptic number.

400906934 is a deficient number, since it is larger than the sum of its proper divisors (203569906).

400906934 is a wasteful number, since it uses less digits than its factorization.

400906934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038814.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 400906934 is about 20022.6605125293. The cubic root of 400906934 is about 737.3627416302.

The spelling of 400906934 in words is "four hundred million, nine hundred six thousand, nine hundred thirty-four".