401492728950 has 48 divisors (see below), whose sum is σ = 1054272678480. Its totient is φ = 100766801920.

The previous prime is 401492728927. The next prime is 401492728963. The reversal of 401492728950 is 59827294104.

It is a super-2 number, since 2×401492728950² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 401492728893 and 401492728902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78721515 + ... + 78726614.

It is an arithmetic number, because the mean of its divisors is an integer number (21964014135).

Almost surely, 2^401492728950 is an apocalyptic number.

401492728950 is an abundant number, since it is smaller than the sum of its proper divisors (652779949530).

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

401492728950 is a wasteful number, since it uses less digits than its factorization.

401492728950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157448161 (or 157448156 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 401492728950 in words is "four hundred one billion, four hundred ninety-two million, seven hundred twenty-eight thousand, nine hundred fifty".