16392994 has 4 divisors (see below), whose sum is σ = 24589494. Its totient is φ = 8196496.

The previous prime is 16392983. The next prime is 16393001. The reversal of 16392994 is 49929361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49929361 = 359 ⋅139079.

It can be written as a sum of positive squares in only one way, i.e., 15499969 + 893025 = 3937^2 + 945^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16392994.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4098247 + ... + 4098250.

Almost surely, 2^16392994 is an apocalyptic number.

16392994 is a deficient number, since it is larger than the sum of its proper divisors (8196500).

16392994 is an equidigital number, since it uses as much as digits as its factorization.

16392994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8196499.

The product of its digits is 104976, while the sum is 43.

The square root of 16392994 is about 4048.8262496679. The cubic root of 16392994 is about 254.0306346996.

The spelling of 16392994 in words is "sixteen million, three hundred ninety-two thousand, nine hundred ninety-four".