40368990 has 16 divisors (see below), whose sum is σ = 96885648. Its totient is φ = 10765056.

The previous prime is 40368989. The next prime is 40369003. The reversal of 40368990 is 9986304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672787 + ... + 672846.

It is an arithmetic number, because the mean of its divisors is an integer number (6055353).

Almost surely, 2^40368990 is an apocalyptic number.

40368990 is an abundant number, since it is smaller than the sum of its proper divisors (56516658).

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

40368990 is a wasteful number, since it uses less digits than its factorization.

40368990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345643.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 40368990 is about 6353.6595753943. The cubic root of 40368990 is about 343.0435789105.

The spelling of 40368990 in words is "forty million, three hundred sixty-eight thousand, nine hundred ninety".