401633427 has 16 divisors (see below), whose sum is σ = 595309568. Its totient is φ = 239185440.

The previous prime is 401633413. The next prime is 401633437. The reversal of 401633427 is 724336104.

It is not a de Polignac number, because 401633427 - 2⁶ = 401633363 is a prime.

It is a super-2 number, since 2×401633427² = 322618819367528658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401633394 and 401633403.

It is not an unprimeable number, because it can be changed into a prime (401633437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164893 + ... + 167310.

It is an arithmetic number, because the mean of its divisors is an integer number (37206848).

Almost surely, 2^401633427 is an apocalyptic number.

401633427 is a deficient number, since it is larger than the sum of its proper divisors (193676141).

401633427 is a wasteful number, since it uses less digits than its factorization.

401633427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332250.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 401633427 is about 20040.7940710941. The cubic root of 401633427 is about 737.8078703887.

The spelling of 401633427 in words is "four hundred one million, six hundred thirty-three thousand, four hundred twenty-seven".