40147690 has 16 divisors (see below), whose sum is σ = 78835680. Its totient is φ = 14599120.

The previous prime is 40147669. The next prime is 40147711. The reversal of 40147690 is 9674104.

40147690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40147669) and next prime (40147711).

It is a super-2 number, since 2×40147690² = 3223674024672200, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 182380 + ... + 182599.

It is an arithmetic number, because the mean of its divisors is an integer number (4927230).

Almost surely, 2^40147690 is an apocalyptic number.

40147690 is a deficient number, since it is larger than the sum of its proper divisors (38687990).

40147690 is a wasteful number, since it uses less digits than its factorization.

40147690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364997.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 40147690 is about 6336.2204822749. The cubic root of 40147690 is about 342.4155829389.

The spelling of 40147690 in words is "forty million, one hundred forty-seven thousand, six hundred ninety".