40215366 has 20 divisors (see below), whose sum is σ = 90112572. Its totient is φ = 13405068.

The previous prime is 40215361. The next prime is 40215367. The reversal of 40215366 is 66351204.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40215361) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 123960 + ... + 124283.

Almost surely, 2^40215366 is an apocalyptic number.

40215366 is an abundant number, since it is smaller than the sum of its proper divisors (49897206).

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

40215366 is a wasteful number, since it uses less digits than its factorization.

40215366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248257 (or 248248 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 40215366 is about 6341.5586412175. The cubic root of 40215366 is about 342.6078755156.

The spelling of 40215366 in words is "forty million, two hundred fifteen thousand, three hundred sixty-six".