16742538 has 20 divisors (see below), whose sum is σ = 37516050. Its totient is φ = 5580792.

The previous prime is 16742527. The next prime is 16742587. The reversal of 16742538 is 83524761.

It can be written as a sum of positive squares in only one way, i.e., 16184529 + 558009 = 4023^2 + 747^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 51513 + ... + 51836.

Almost surely, 2^16742538 is an apocalyptic number.

16742538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16742538 is an abundant number, since it is smaller than the sum of its proper divisors (20773512).

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

16742538 is a wasteful number, since it uses less digits than its factorization.

16742538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103363 (or 103354 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 16742538 is about 4091.7646559889. The cubic root of 16742538 is about 255.8234969062.

The spelling of 16742538 in words is "sixteen million, seven hundred forty-two thousand, five hundred thirty-eight".