38400023 has 2 divisors, whose sum is σ = 38400024. Its totient is φ = 38400022.

The previous prime is 38399983. The next prime is 38400071. The reversal of 38400023 is 32000483.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38400023 - 2¹² = 38395927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38399968 and 38400004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38400073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19200011 + 19200012.

It is an arithmetic number, because the mean of its divisors is an integer number (19200012).

Almost surely, 2^38400023 is an apocalyptic number.

38400023 is a deficient number, since it is larger than the sum of its proper divisors (1).

38400023 is an equidigital number, since it uses as much as digits as its factorization.

38400023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 38400023 is about 6196.7752097361. The cubic root of 38400023 is about 337.3731334782.

The spelling of 38400023 in words is "thirty-eight million, four hundred thousand, twenty-three".