400973761 has 8 divisors (see below), whose sum is σ = 409561280. Its totient is φ = 392462928.

The previous prime is 400973719. The next prime is 400973767. The reversal of 400973761 is 167379004.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400973761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400973761.

It is not an unprimeable number, because it can be changed into a prime (400973767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8541 + ... + 29578.

It is an arithmetic number, because the mean of its divisors is an integer number (51195160).

Almost surely, 2^400973761 is an apocalyptic number.

It is an amenable number.

400973761 is a deficient number, since it is larger than the sum of its proper divisors (8587519).

400973761 is a wasteful number, since it uses less digits than its factorization.

400973761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38343.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 400973761 is about 20024.3292272176. The cubic root of 400973761 is about 737.4037095774.

The spelling of 400973761 in words is "four hundred million, nine hundred seventy-three thousand, seven hundred sixty-one".