20297016 has 96 divisors (see below), whose sum is σ = 59576400. Its totient is φ = 6220800.

The previous prime is 20296987. The next prime is 20297027. The reversal of 20297016 is 61079202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50416 + ... + 50816.

Almost surely, 2^20297016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20297016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29788200).

20297016 is an abundant number, since it is smaller than the sum of its proper divisors (39279384).

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

20297016 is a wasteful number, since it uses less digits than its factorization.

20297016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 20297016 is about 4505.2209712732. The cubic root of 20297016 is about 272.7788733879.

It can be divided in two parts, 2029 and 7016, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 20297016 in words is "twenty million, two hundred ninety-seven thousand, sixteen".