40690694 has 8 divisors (see below), whose sum is σ = 66584808. Its totient is φ = 18495760.

The previous prime is 40690691. The next prime is 40690729. The reversal of 40690694 is 49609604.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40690691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 924767 + ... + 924810.

It is an arithmetic number, because the mean of its divisors is an integer number (8323101).

Almost surely, 2^40690694 is an apocalyptic number.

40690694 is a deficient number, since it is larger than the sum of its proper divisors (25894114).

40690694 is a wasteful number, since it uses less digits than its factorization.

40690694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849590.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 40690694 is about 6378.9257716327. The cubic root of 40690694 is about 343.9524170259.

The spelling of 40690694 in words is "forty million, six hundred ninety thousand, six hundred ninety-four".