40889739 has 16 divisors (see below), whose sum is σ = 61528320. Its totient is φ = 23926560.

The previous prime is 40889731. The next prime is 40889759. The reversal of 40889739 is 93798804.

It is not a de Polignac number, because 40889739 - 2³ = 40889731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40889731) 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 in 15 ways as a sum of consecutive naturals, for example, 20407 + ... + 22320.

It is an arithmetic number, because the mean of its divisors is an integer number (3845520).

Almost surely, 2^40889739 is an apocalyptic number.

40889739 is a deficient number, since it is larger than the sum of its proper divisors (20638581).

40889739 is a wasteful number, since it uses less digits than its factorization.

40889739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42770.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 40889739 is about 6394.5085033957. The cubic root of 40889739 is about 344.5123376824.

The spelling of 40889739 in words is "forty million, eight hundred eighty-nine thousand, seven hundred thirty-nine".