40748013 has 12 divisors (see below), whose sum is σ = 60111168. Its totient is φ = 26587080.

The previous prime is 40748009. The next prime is 40748021. The reversal of 40748013 is 31084704.

It is not a de Polignac number, because 40748013 - 2² = 40748009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40748023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47743 + ... + 48588.

It is an arithmetic number, because the mean of its divisors is an integer number (5009264).

Almost surely, 2^40748013 is an apocalyptic number.

It is an amenable number.

40748013 is a deficient number, since it is larger than the sum of its proper divisors (19363155).

40748013 is a wasteful number, since it uses less digits than its factorization.

40748013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96384 (or 96381 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 40748013 is about 6383.4170316532. The cubic root of 40748013 is about 344.1138442606.

The spelling of 40748013 in words is "forty million, seven hundred forty-eight thousand, thirteen".