39994494 has 16 divisors (see below), whose sum is σ = 80500368. Its totient is φ = 13246272.

The previous prime is 39994481. The next prime is 39994531. The reversal of 39994494 is 49449993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20287 + ... + 22170.

It is an arithmetic number, because the mean of its divisors is an integer number (5031273).

Almost surely, 2^39994494 is an apocalyptic number.

39994494 is an abundant number, since it is smaller than the sum of its proper divisors (40505874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39994494 is a wasteful number, since it uses less digits than its factorization.

39994494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42619.

The product of its digits is 1259712, while the sum is 51.

The square root of 39994494 is about 6324.1200178365. The cubic root of 39994494 is about 341.9794967360.

The spelling of 39994494 in words is "thirty-nine million, nine hundred ninety-four thousand, four hundred ninety-four".