401385530 has 64 divisors (see below), whose sum is σ = 894136320. Its totient is φ = 126330624.

The previous prime is 401385527. The next prime is 401385539. The reversal of 401385530 is 35583104.

It is a super-2 number, since 2×401385530² = 322220687386761800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401385493 and 401385502.

It is not an unprimeable number, because it can be changed into a prime (401385539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178151 + ... + 180389.

It is an arithmetic number, because the mean of its divisors is an integer number (13970880).

Almost surely, 2^401385530 is an apocalyptic number.

401385530 is an abundant number, since it is smaller than the sum of its proper divisors (492750790).

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

401385530 is a wasteful number, since it uses less digits than its factorization.

401385530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2463.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 401385530 is about 20034.6083066278. The cubic root of 401385530 is about 737.6560420561.

The spelling of 401385530 in words is "four hundred one million, three hundred eighty-five thousand, five hundred thirty".