16812742 has 8 divisors (see below), whose sum is σ = 25805736. Its totient is φ = 8210832.

The previous prime is 16812709. The next prime is 16812749. The reversal of 16812742 is 24721861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16812749) 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, 97663 + ... + 97834.

It is an arithmetic number, because the mean of its divisors is an integer number (3225717).

Almost surely, 2^16812742 is an apocalyptic number.

16812742 is a deficient number, since it is larger than the sum of its proper divisors (8992994).

16812742 is a wasteful number, since it uses less digits than its factorization.

16812742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195542.

The product of its digits is 5376, while the sum is 31.

The square root of 16812742 is about 4100.3343766088. The cubic root of 16812742 is about 256.1805671888.

The spelling of 16812742 in words is "sixteen million, eight hundred twelve thousand, seven hundred forty-two".