40651039 has 24 divisors (see below), whose sum is σ = 49320656. Its totient is φ = 33264000.

The previous prime is 40651033. The next prime is 40651043. The reversal of 40651039 is 93015604.

40651039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40651039 - 2³ = 40651031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40650998 and 40651016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40651031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67339 + ... + 67939.

Almost surely, 2^40651039 is an apocalyptic number.

40651039 is a deficient number, since it is larger than the sum of its proper divisors (8669617).

40651039 is a wasteful number, since it uses less digits than its factorization.

40651039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 40651039 is about 6375.8167319960. The cubic root of 40651039 is about 343.8406480937.

The spelling of 40651039 in words is "forty million, six hundred fifty-one thousand, thirty-nine".