40247008 has 12 divisors (see below), whose sum is σ = 79236360. Its totient is φ = 20123488.

The previous prime is 40246991. The next prime is 40247047. The reversal of 40247008 is 80074204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628828 + ... + 628891.

It is an arithmetic number, because the mean of its divisors is an integer number (6603030).

Almost surely, 2^40247008 is an apocalyptic number.

It is an amenable number.

40247008 is a deficient number, since it is larger than the sum of its proper divisors (38989352).

40247008 is a wasteful number, since it uses less digits than its factorization.

40247008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257729 (or 1257721 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 40247008 is about 6344.0529632089. The cubic root of 40247008 is about 342.6977081466.

The spelling of 40247008 in words is "forty million, two hundred forty-seven thousand, eight".