20986152 has 32 divisors (see below), whose sum is σ = 57235680. Its totient is φ = 6359360.

The previous prime is 20986151. The next prime is 20986153. The reversal of 20986152 is 25168902.

It is an interprime number because it is at equal distance from previous prime (20986151) and next prime (20986153).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (20986151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39483 + ... + 40010.

It is an arithmetic number, because the mean of its divisors is an integer number (1788615).

Almost surely, 2^20986152 is an apocalyptic number.

20986152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20986152 is an abundant number, since it is smaller than the sum of its proper divisors (36249528).

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

20986152 is a wasteful number, since it uses less digits than its factorization.

20986152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79513 (or 79509 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 20986152 is about 4581.0645051123. The cubic root of 20986152 is about 275.8317605222.

The spelling of 20986152 in words is "twenty million, nine hundred eighty-six thousand, one hundred fifty-two".