400738748 has 12 divisors (see below), whose sum is σ = 701992200. Its totient is φ = 200169552.

The previous prime is 400738727. The next prime is 400738769. The reversal of 400738748 is 847837004.

It is an interprime number because it is at equal distance from previous prime (400738727) and next prime (400738769).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45398 + ... + 53501.

It is an arithmetic number, because the mean of its divisors is an integer number (58499350).

Almost surely, 2^400738748 is an apocalyptic number.

It is an amenable number.

400738748 is a deficient number, since it is larger than the sum of its proper divisors (301253452).

400738748 is a wasteful number, since it uses less digits than its factorization.

400738748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99916 (or 99914 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 400738748 is about 20018.4601805434. The cubic root of 400738748 is about 737.2596159207.

The spelling of 400738748 in words is "four hundred million, seven hundred thirty-eight thousand, seven hundred forty-eight".