401361136 has 40 divisors (see below), whose sum is σ = 869038128. Its totient is φ = 177984000.

The previous prime is 401361133. The next prime is 401361167. The reversal of 401361136 is 631163104.

It is a happy number.

It is a super-2 number, since 2×401361136² = 322181522982420992, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401361136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401361133) 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, 20595 + ... + 35026.

Almost surely, 2^401361136 is an apocalyptic number.

It is an amenable number.

401361136 is an abundant number, since it is smaller than the sum of its proper divisors (467676992).

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

401361136 is a wasteful number, since it uses less digits than its factorization.

401361136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55681 (or 55675 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 401361136 is about 20033.9995008486. Note that the first 3 decimals coincide. The cubic root of 401361136 is about 737.6410981973.

The spelling of 401361136 in words is "four hundred one million, three hundred sixty-one thousand, one hundred thirty-six".