40764145 has 8 divisors (see below), whose sum is σ = 49150080. Its totient is φ = 32455920.

The previous prime is 40764137. The next prime is 40764179. The reversal of 40764145 is 54146704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40764145 - 2³ = 40764137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18265 + ... + 20374.

It is an arithmetic number, because the mean of its divisors is an integer number (6143760).

Almost surely, 2^40764145 is an apocalyptic number.

It is an amenable number.

40764145 is a deficient number, since it is larger than the sum of its proper divisors (8385935).

40764145 is a wasteful number, since it uses less digits than its factorization.

40764145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38855.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 40764145 is about 6384.6804931805. The cubic root of 40764145 is about 344.1592494368.

The spelling of 40764145 in words is "forty million, seven hundred sixty-four thousand, one hundred forty-five".