40730745 has 32 divisors (see below), whose sum is σ = 73396224. Its totient is φ = 19108800.

The previous prime is 40730731. The next prime is 40730771. The reversal of 40730745 is 54703704.

It is not a de Polignac number, because 40730745 - 2⁵ = 40730713 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, 1134 + ... + 9096.

It is an arithmetic number, because the mean of its divisors is an integer number (2293632).

Almost surely, 2^40730745 is an apocalyptic number.

It is an amenable number.

40730745 is a deficient number, since it is larger than the sum of its proper divisors (32665479).

40730745 is a wasteful number, since it uses less digits than its factorization.

40730745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8013.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 40730745 is about 6382.0643212052. The cubic root of 40730745 is about 344.0652284141.

The spelling of 40730745 in words is "forty million, seven hundred thirty thousand, seven hundred forty-five".