40023007 has 2 divisors, whose sum is σ = 40023008. Its totient is φ = 40023006.

The previous prime is 40022999. The next prime is 40023041. The reversal of 40023007 is 70032004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40023007 - 2³ = 40022999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40023097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20011503 + 20011504.

It is an arithmetic number, because the mean of its divisors is an integer number (20011504).

Almost surely, 2^40023007 is an apocalyptic number.

40023007 is a deficient number, since it is larger than the sum of its proper divisors (1).

40023007 is an equidigital number, since it uses as much as digits as its factorization.

40023007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 40023007 is about 6326.3739219240. The cubic root of 40023007 is about 342.0607457958.

The spelling of 40023007 in words is "forty million, twenty-three thousand, seven".