40237668 has 48 divisors (see below), whose sum is σ = 109816000. Its totient is φ = 12705984.

The previous prime is 40237663. The next prime is 40237669. The reversal of 40237668 is 86673204.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (40237661) 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, 7753 + ... + 11856.

Almost surely, 2^40237668 is an apocalyptic number.

It is an amenable number.

40237668 is an abundant number, since it is smaller than the sum of its proper divisors (69578332).

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

40237668 is a wasteful number, since it uses less digits than its factorization.

40237668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19641 (or 19633 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 40237668 is about 6343.3167980166. The cubic root of 40237668 is about 342.6711964928.

The spelling of 40237668 in words is "forty million, two hundred thirty-seven thousand, six hundred sixty-eight".