38006431 has 2 divisors, whose sum is σ = 38006432. Its totient is φ = 38006430.

The previous prime is 38006399. The next prime is 38006483. The reversal of 38006431 is 13460083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38006431 - 2⁵ = 38006399 is a prime.

It is a super-2 number, since 2×38006431² = 2888977594715522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38006396 and 38006405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38006131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19003215 + 19003216.

It is an arithmetic number, because the mean of its divisors is an integer number (19003216).

Almost surely, 2^38006431 is an apocalyptic number.

38006431 is a deficient number, since it is larger than the sum of its proper divisors (1).

38006431 is an equidigital number, since it uses as much as digits as its factorization.

38006431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 38006431 is about 6164.9356038810. The cubic root of 38006431 is about 336.2165052801.

The spelling of 38006431 in words is "thirty-eight million, six thousand, four hundred thirty-one".