40740385 has 32 divisors (see below), whose sum is σ = 57657600. Its totient is φ = 27060480.

The previous prime is 40740361. The next prime is 40740391. The reversal of 40740385 is 58304704.

It is not a de Polignac number, because 40740385 - 2¹⁵ = 40707617 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224995 + ... + 225175.

It is an arithmetic number, because the mean of its divisors is an integer number (1801800).

Almost surely, 2^40740385 is an apocalyptic number.

It is an amenable number.

40740385 is a deficient number, since it is larger than the sum of its proper divisors (16917215).

40740385 is a wasteful number, since it uses less digits than its factorization.

40740385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361.

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

The square root of 40740385 is about 6382.8195180500. The cubic root of 40740385 is about 344.0923702956.

The spelling of 40740385 in words is "forty million, seven hundred forty thousand, three hundred eighty-five".