40130687 has 4 divisors (see below), whose sum is σ = 40145160. Its totient is φ = 40116216.

The previous prime is 40130663. The next prime is 40130719. The reversal of 40130687 is 78603104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40130687 - 2¹² = 40126591 is a prime.

It is a super-2 number, since 2×40130687² = 3220944078183938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40130627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628 + ... + 9105.

It is an arithmetic number, because the mean of its divisors is an integer number (10036290).

Almost surely, 2^40130687 is an apocalyptic number.

40130687 is a deficient number, since it is larger than the sum of its proper divisors (14473).

40130687 is a wasteful number, since it uses less digits than its factorization.

40130687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14472.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 40130687 is about 6334.8786097288. The cubic root of 40130687 is about 342.3672371582.

The spelling of 40130687 in words is "forty million, one hundred thirty thousand, six hundred eighty-seven".