400457728270 has 8 divisors (see below), whose sum is σ = 720823910904. Its totient is φ = 160183091304.

The previous prime is 400457728261. The next prime is 400457728309. The reversal of 400457728270 is 72827754004.

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

It is a self number, because there is not a number n which added to its sum of digits gives 400457728270.

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, 20022886404 + ... + 20022886423.

It is an arithmetic number, because the mean of its divisors is an integer number (90102988863).

Almost surely, 2^400457728270 is an apocalyptic number.

400457728270 is a deficient number, since it is larger than the sum of its proper divisors (320366182634).

400457728270 is a wasteful number, since it uses less digits than its factorization.

400457728270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40045772834.

The product of its (nonzero) digits is 878080, while the sum is 46.

The spelling of 400457728270 in words is "four hundred billion, four hundred fifty-seven million, seven hundred twenty-eight thousand, two hundred seventy".