16613442 has 24 divisors (see below), whose sum is σ = 36263916. Its totient is φ = 5496576.

The previous prime is 16613431. The next prime is 16613461. The reversal of 16613442 is 24431661.

16613442 is a `hidden beast` number, since 1 + 6 + 613 + 4 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16573041 + 40401 = 4071^2 + 201^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 903 + ... + 5834.

Almost surely, 2^16613442 is an apocalyptic number.

16613442 is an abundant number, since it is smaller than the sum of its proper divisors (19650474).

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

16613442 is a wasteful number, since it uses less digits than its factorization.

16613442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6882 (or 6879 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 16613442 is about 4075.9590282534. The cubic root of 16613442 is about 255.1642770757.

It can be divided in two parts, 166134 and 42, that added together give a triangular number (166176 = T₅₇₆).

The spelling of 16613442 in words is "sixteen million, six hundred thirteen thousand, four hundred forty-two".