40899685 has 16 divisors (see below), whose sum is σ = 52545600. Its totient is φ = 30468096.

The previous prime is 40899679. The next prime is 40899701. The reversal of 40899685 is 58699804.

It is a happy number.

It is not a de Polignac number, because 40899685 - 2⁵ = 40899653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1957 + ... + 9253.

It is an arithmetic number, because the mean of its divisors is an integer number (3284100).

Almost surely, 2^40899685 is an apocalyptic number.

It is an amenable number.

40899685 is a deficient number, since it is larger than the sum of its proper divisors (11645915).

40899685 is a wasteful number, since it uses less digits than its factorization.

40899685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7380.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 40899685 is about 6395.2861546611. The cubic root of 40899685 is about 344.5402684217.

The spelling of 40899685 in words is "forty million, eight hundred ninety-nine thousand, six hundred eighty-five".