401570023 has 2 divisors, whose sum is σ = 401570024. Its totient is φ = 401570022.

The previous prime is 401570017. The next prime is 401570053. The reversal of 401570023 is 320075104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401570023 - 2¹⁷ = 401438951 is a prime.

It is a super-2 number, since 2×401570023² = 322516966744441058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401569976 and 401570003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401570003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200785011 + 200785012.

It is an arithmetic number, because the mean of its divisors is an integer number (200785012).

Almost surely, 2^401570023 is an apocalyptic number.

401570023 is a deficient number, since it is larger than the sum of its proper divisors (1).

401570023 is an equidigital number, since it uses as much as digits as its factorization.

401570023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 401570023 is about 20039.2121352113. The cubic root of 401570023 is about 737.7690435805.

The spelling of 401570023 in words is "four hundred one million, five hundred seventy thousand, twenty-three".