16442694 has 12 divisors (see below), whose sum is σ = 35625876. Its totient is φ = 5480892.

The previous prime is 16442693. The next prime is 16442711. The reversal of 16442694 is 49624461.

16442694 is a `hidden beast` number, since 1 + 644 + 2 + 6 + 9 + 4 = 666.

It is a super-3 number, since 3×16442694³ (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442693) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 456724 + ... + 456759.

It is an arithmetic number, because the mean of its divisors is an integer number (2968823).

Almost surely, 2^16442694 is an apocalyptic number.

16442694 is an abundant number, since it is smaller than the sum of its proper divisors (19183182).

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

16442694 is a wasteful number, since it uses less digits than its factorization.

16442694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913491 (or 913488 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 16442694 is about 4054.9591859845. The cubic root of 16442694 is about 254.2870976112.

The spelling of 16442694 in words is "sixteen million, four hundred forty-two thousand, six hundred ninety-four".