40662687 has 8 divisors (see below), whose sum is σ = 58387504. Its totient is φ = 25023168.

The previous prime is 40662683. The next prime is 40662697. The reversal of 40662687 is 78626604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40662687 - 2² = 40662683 is a prime.

It is a super-2 number, since 2×40662687² = 3306908228119938, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1042633 = 40662687 / (4 + 0 + 6 + 6 + 2 + 6 + 8 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40662683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521278 + ... + 521355.

It is an arithmetic number, because the mean of its divisors is an integer number (7298438).

Almost surely, 2^40662687 is an apocalyptic number.

40662687 is a deficient number, since it is larger than the sum of its proper divisors (17724817).

40662687 is a wasteful number, since it uses less digits than its factorization.

40662687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042649.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 40662687 is about 6376.7301181719. The cubic root of 40662687 is about 343.8734859046.

The spelling of 40662687 in words is "forty million, six hundred sixty-two thousand, six hundred eighty-seven".