40724699 has 2 divisors, whose sum is σ = 40724700. Its totient is φ = 40724698.

The previous prime is 40724683. The next prime is 40724777. The reversal of 40724699 is 99642704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40724699 - 2⁴ = 40724683 is a prime.

It is a super-2 number, since 2×40724699² = 3317002217281202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40724659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20362349 + 20362350.

It is an arithmetic number, because the mean of its divisors is an integer number (20362350).

Almost surely, 2^40724699 is an apocalyptic number.

40724699 is a deficient number, since it is larger than the sum of its proper divisors (1).

40724699 is an equidigital number, since it uses as much as digits as its factorization.

40724699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 40724699 is about 6381.5906324364. The cubic root of 40724699 is about 344.0482034263.

The spelling of 40724699 in words is "forty million, seven hundred twenty-four thousand, six hundred ninety-nine".