400607706 has 8 divisors (see below), whose sum is σ = 801215424. Its totient is φ = 133535900.

The previous prime is 400607671. The next prime is 400607707. The reversal of 400607706 is 607706004.

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

400607706 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (400607707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33383970 + ... + 33383981.

It is an arithmetic number, because the mean of its divisors is an integer number (100151928).

Almost surely, 2^400607706 is an apocalyptic number.

400607706 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400607706 is a wasteful number, since it uses less digits than its factorization.

400607706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66767956.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 400607706 is about 20015.1868839639. The cubic root of 400607706 is about 737.1792455982.

The spelling of 400607706 in words is "four hundred million, six hundred seven thousand, seven hundred six".