40102747 has 8 divisors (see below), whose sum is σ = 41472000. Its totient is φ = 38738280.

The previous prime is 40102739. The next prime is 40102763. The reversal of 40102747 is 74720104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40102747 - 2³ = 40102739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40102147) 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, 26004 + ... + 27502.

It is an arithmetic number, because the mean of its divisors is an integer number (5184000).

Almost surely, 2^40102747 is an apocalyptic number.

40102747 is a deficient number, since it is larger than the sum of its proper divisors (1369253).

40102747 is a wasteful number, since it uses less digits than its factorization.

40102747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2393.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 40102747 is about 6332.6729743450. The cubic root of 40102747 is about 342.2877637996.

The spelling of 40102747 in words is "forty million, one hundred two thousand, seven hundred forty-seven".