40051748 has 24 divisors (see below), whose sum is σ = 78244320. Its totient is φ = 17781120.

The previous prime is 40051747. The next prime is 40051751. The reversal of 40051748 is 84715004.

It is a self number, because there is not a number n which added to its sum of digits gives 40051748.

It is not an unprimeable number, because it can be changed into a prime (40051741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8693 + ... + 12476.

It is an arithmetic number, because the mean of its divisors is an integer number (3260180).

Almost surely, 2^40051748 is an apocalyptic number.

It is an amenable number.

40051748 is a deficient number, since it is larger than the sum of its proper divisors (38192572).

40051748 is a wasteful number, since it uses less digits than its factorization.

40051748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21227 (or 21225 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 40051748 is about 6328.6450366567. The cubic root of 40051748 is about 342.1426055083.

The spelling of 40051748 in words is "forty million, fifty-one thousand, seven hundred forty-eight".