401577630 has 16 divisors (see below), whose sum is σ = 963786384. Its totient is φ = 107087360.

The previous prime is 401577629. The next prime is 401577637. The reversal of 401577630 is 36775104.

It is a super-2 number, since 2×401577630² = 322529185832833800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401577591 and 401577600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401577637) 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, 6692931 + ... + 6692990.

It is an arithmetic number, because the mean of its divisors is an integer number (60236649).

Almost surely, 2^401577630 is an apocalyptic number.

401577630 is an abundant number, since it is smaller than the sum of its proper divisors (562208754).

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

401577630 is a wasteful number, since it uses less digits than its factorization.

401577630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13385931.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 401577630 is about 20039.4019371837. The cubic root of 401577630 is about 737.7737021070.

The spelling of 401577630 in words is "four hundred one million, five hundred seventy-seven thousand, six hundred thirty".