40386694 has 4 divisors (see below), whose sum is σ = 60580044. Its totient is φ = 20193346.

The previous prime is 40386691. The next prime is 40386701. The reversal of 40386694 is 49668304.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40386691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10096672 + ... + 10096675.

It is an arithmetic number, because the mean of its divisors is an integer number (15145011).

Almost surely, 2^40386694 is an apocalyptic number.

40386694 is a deficient number, since it is larger than the sum of its proper divisors (20193350).

40386694 is a wasteful number, since it uses less digits than its factorization.

40386694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20193349.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 40386694 is about 6355.0526355019. The cubic root of 40386694 is about 343.0937193435.

The spelling of 40386694 in words is "forty million, three hundred eighty-six thousand, six hundred ninety-four".