40415764 has 6 divisors (see below), whose sum is σ = 70727594. Its totient is φ = 20207880.

The previous prime is 40415737. The next prime is 40415789. The reversal of 40415764 is 46751404.

It can be written as a sum of positive squares in only one way, i.e., 33872400 + 6543364 = 5820^2 + 2558^2 .

It is a zygodrome in base 3.

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, 5051967 + ... + 5051974.

Almost surely, 2^40415764 is an apocalyptic number.

It is an amenable number.

40415764 is a deficient number, since it is larger than the sum of its proper divisors (30311830).

40415764 is a wasteful number, since it uses less digits than its factorization.

40415764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10103945 (or 10103943 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 40415764 is about 6357.3393805900. The cubic root of 40415764 is about 343.1760182510.

The spelling of 40415764 in words is "forty million, four hundred fifteen thousand, seven hundred sixty-four".