401228136 has 48 divisors (see below), whose sum is σ = 1088062560. Its totient is φ = 133570080.

The previous prime is 401228117. The next prime is 401228153. The reversal of 401228136 is 631822104.

401228136 is a `hidden beast` number, since 401 + 228 + 1 + 36 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60421 + ... + 66731.

It is an arithmetic number, because the mean of its divisors is an integer number (22667970).

Almost surely, 2^401228136 is an apocalyptic number.

It is an amenable number.

401228136 is an abundant number, since it is smaller than the sum of its proper divisors (686834424).

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

401228136 is a wasteful number, since it uses less digits than its factorization.

401228136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7206 (or 7199 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 401228136 is about 20030.6798686415. The cubic root of 401228136 is about 737.5596112306.

The spelling of 401228136 in words is "four hundred one million, two hundred twenty-eight thousand, one hundred thirty-six".