40099634 has 32 divisors (see below), whose sum is σ = 66977280. Its totient is φ = 17918208.

The previous prime is 40099627. The next prime is 40099643. The reversal of 40099634 is 43699004.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40099594 and 40099603.

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, 65759 + ... + 66365.

It is an arithmetic number, because the mean of its divisors is an integer number (2093040).

Almost surely, 2^40099634 is an apocalyptic number.

40099634 is a deficient number, since it is larger than the sum of its proper divisors (26877646).

40099634 is a wasteful number, since it uses less digits than its factorization.

40099634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 40099634 is about 6332.4271807894. The cubic root of 40099634 is about 342.2789068055.

The spelling of 40099634 in words is "forty million, ninety-nine thousand, six hundred thirty-four".