40720583 has 2 divisors, whose sum is σ = 40720584. Its totient is φ = 40720582.

The previous prime is 40720579. The next prime is 40720601. The reversal of 40720583 is 38502704.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40720583 - 2² = 40720579 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40720513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20360291 + 20360292.

It is an arithmetic number, because the mean of its divisors is an integer number (20360292).

Almost surely, 2^40720583 is an apocalyptic number.

40720583 is a deficient number, since it is larger than the sum of its proper divisors (1).

40720583 is an equidigital number, since it uses as much as digits as its factorization.

40720583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 40720583 is about 6381.2681341564. The cubic root of 40720583 is about 344.0366121795.

The spelling of 40720583 in words is "forty million, seven hundred twenty thousand, five hundred eighty-three".