40045748 has 12 divisors (see below), whose sum is σ = 70224000. Its totient is φ = 19981752.

The previous prime is 40045741. The next prime is 40045777. The reversal of 40045748 is 84754004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40045741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8036 + ... + 12027.

It is an arithmetic number, because the mean of its divisors is an integer number (5852000).

Almost surely, 2^40045748 is an apocalyptic number.

It is an amenable number.

40045748 is a deficient number, since it is larger than the sum of its proper divisors (30178252).

40045748 is a wasteful number, since it uses less digits than its factorization.

40045748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20566 (or 20564 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 40045748 is about 6328.1709837835. The cubic root of 40045748 is about 342.1255196277.

The spelling of 40045748 in words is "forty million, forty-five thousand, seven hundred forty-eight".