40207308 has 48 divisors (see below), whose sum is σ = 97202784. Its totient is φ = 12925440.

The previous prime is 40207291. The next prime is 40207309. The reversal of 40207308 is 80370204.

It is not an unprimeable number, because it can be changed into a prime (40207309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60498 + ... + 61158.

It is an arithmetic number, because the mean of its divisors is an integer number (2025058).

Almost surely, 2^40207308 is an apocalyptic number.

It is an amenable number.

40207308 is an abundant number, since it is smaller than the sum of its proper divisors (56995476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40207308 is a wasteful number, since it uses less digits than its factorization.

40207308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 40207308 is about 6340.9232766215. The cubic root of 40207308 is about 342.5849910732.

The spelling of 40207308 in words is "forty million, two hundred seven thousand, three hundred eight".