16974020 has 48 divisors (see below), whose sum is σ = 40981248. Its totient is φ = 5784960.

The previous prime is 16973993. The next prime is 16974031. The reversal of 16974020 is 2047961.

16974020 = 315² + 316² + ... + 434².

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36590 + ... + 37050.

It is an arithmetic number, because the mean of its divisors is an integer number (853776).

Almost surely, 2^16974020 is an apocalyptic number.

16974020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16974020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20490624).

16974020 is an abundant number, since it is smaller than the sum of its proper divisors (24007228).

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

16974020 is a wasteful number, since it uses less digits than its factorization.

16974020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 16974020 is about 4119.9538832370. The cubic root of 16974020 is about 256.9971081750.

The spelling of 16974020 in words is "sixteen million, nine hundred seventy-four thousand, twenty".