401536043 has 2 divisors, whose sum is σ = 401536044. Its totient is φ = 401536042.

The previous prime is 401536019. The next prime is 401536081. The reversal of 401536043 is 340635104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401536043 - 2¹² = 401531947 is a prime.

It is a super-2 number, since 2×401536043² = 322462387656195698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401536843) 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 as a sum of consecutive naturals, namely, 200768021 + 200768022.

It is an arithmetic number, because the mean of its divisors is an integer number (200768022).

Almost surely, 2^401536043 is an apocalyptic number.

401536043 is a deficient number, since it is larger than the sum of its proper divisors (1).

401536043 is an equidigital number, since it uses as much as digits as its factorization.

401536043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 401536043 is about 20038.3642795514. The cubic root of 401536043 is about 737.7482335119.

The spelling of 401536043 in words is "four hundred one million, five hundred thirty-six thousand, forty-three".