401552919 has 6 divisors (see below), whose sum is σ = 580020896. Its totient is φ = 267701940.

The previous prime is 401552887. The next prime is 401552923. The reversal of 401552919 is 919255104.

It is not a de Polignac number, because 401552919 - 2⁵ = 401552887 is a prime.

It is a super-2 number, since 2×401552919² = 322489493514841122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401552119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22308487 + ... + 22308504.

Almost surely, 2^401552919 is an apocalyptic number.

401552919 is a deficient number, since it is larger than the sum of its proper divisors (178467977).

401552919 is a wasteful number, since it uses less digits than its factorization.

401552919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44616997 (or 44616994 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 401552919 is about 20038.7853673819. The cubic root of 401552919 is about 737.7585688770.

The spelling of 401552919 in words is "four hundred one million, five hundred fifty-two thousand, nine hundred nineteen".