40658740 has 12 divisors (see below), whose sum is σ = 85383396. Its totient is φ = 16263488.

The previous prime is 40658719. The next prime is 40658759. The reversal of 40658740 is 4785604.

40658740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8259876 + 32398864 = 2874^2 + 5692^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40658696 and 40658705.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1016449 + ... + 1016488.

It is an arithmetic number, because the mean of its divisors is an integer number (7115283).

Almost surely, 2^40658740 is an apocalyptic number.

It is an amenable number.

40658740 is an abundant number, since it is smaller than the sum of its proper divisors (44724656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40658740 is a wasteful number, since it uses less digits than its factorization.

40658740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032946 (or 2032944 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 40658740 is about 6376.4206260252. The cubic root of 40658740 is about 343.8623593029.

The spelling of 40658740 in words is "forty million, six hundred fifty-eight thousand, seven hundred forty".