40156490 has 32 divisors (see below), whose sum is σ = 79868160. Its totient is φ = 14414400.

The previous prime is 40156477. The next prime is 40156531. The reversal of 40156490 is 9465104.

40156490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40156490² = 3225087378240200, 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 15 ways as a sum of consecutive naturals, for example, 6380 + ... + 11000.

It is an arithmetic number, because the mean of its divisors is an integer number (2495880).

Almost surely, 2^40156490 is an apocalyptic number.

40156490 is a deficient number, since it is larger than the sum of its proper divisors (39711670).

40156490 is a wasteful number, since it uses less digits than its factorization.

40156490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4718.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 40156490 is about 6336.9148645062. The cubic root of 40156490 is about 342.4405992142.

The spelling of 40156490 in words is "forty million, one hundred fifty-six thousand, four hundred ninety".