400948959 has 8 divisors (see below), whose sum is σ = 535946800. Its totient is φ = 266625216.

The previous prime is 400948957. The next prime is 400948967. The reversal of 400948959 is 959849004.

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

It is not a de Polignac number, because 400948959 - 2¹ = 400948957 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 (400948957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167134 + ... + 169515.

It is an arithmetic number, because the mean of its divisors is an integer number (66993350).

Almost surely, 2^400948959 is an apocalyptic number.

400948959 is a deficient number, since it is larger than the sum of its proper divisors (134997841).

400948959 is a wasteful number, since it uses less digits than its factorization.

400948959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337049.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 400948959 is about 20023.7099209912. The cubic root of 400948959 is about 737.3885053706.

The spelling of 400948959 in words is "four hundred million, nine hundred forty-eight thousand, nine hundred fifty-nine".