16242493 has 4 divisors (see below), whose sum is σ = 16394400. Its totient is φ = 16090588.

The previous prime is 16242491. The next prime is 16242529. The reversal of 16242493 is 39424261.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16242493 - 2¹ = 16242491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16242491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75793 + ... + 76006.

It is an arithmetic number, because the mean of its divisors is an integer number (4098600).

Almost surely, 2^16242493 is an apocalyptic number.

It is an amenable number.

16242493 is a deficient number, since it is larger than the sum of its proper divisors (151907).

16242493 is a wasteful number, since it uses less digits than its factorization.

16242493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151906.

The product of its digits is 10368, while the sum is 31.

The square root of 16242493 is about 4030.1976378337. The cubic root of 16242493 is about 253.2508409081.

The spelling of 16242493 in words is "sixteen million, two hundred forty-two thousand, four hundred ninety-three".