40074739 has 2 divisors, whose sum is σ = 40074740. Its totient is φ = 40074738.

The previous prime is 40074733. The next prime is 40074751. The reversal of 40074739 is 93747004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40074739 - 2⁵ = 40074707 is a prime.

It is a super-3 number, since 3×40074739³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (40074733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20037369 + 20037370.

It is an arithmetic number, because the mean of its divisors is an integer number (20037370).

Almost surely, 2^40074739 is an apocalyptic number.

40074739 is a deficient number, since it is larger than the sum of its proper divisors (1).

40074739 is an equidigital number, since it uses as much as digits as its factorization.

40074739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 40074739 is about 6330.4611996283. The cubic root of 40074739 is about 342.2080599630.

The spelling of 40074739 in words is "forty million, seventy-four thousand, seven hundred thirty-nine".