20975262 has 64 divisors (see below), whose sum is σ = 53028864. Its totient is φ = 5372640.

The previous prime is 20975261. The next prime is 20975281. The reversal of 20975262 is 26257902.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20975261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38073 + ... + 38619.

It is an arithmetic number, because the mean of its divisors is an integer number (828576).

Almost surely, 2^20975262 is an apocalyptic number.

20975262 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20975262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26514432).

20975262 is an abundant number, since it is smaller than the sum of its proper divisors (32053602).

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

20975262 is a wasteful number, since it uses less digits than its factorization.

20975262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 20975262 is about 4579.8757625071. The cubic root of 20975262 is about 275.7840413152.

The spelling of 20975262 in words is "twenty million, nine hundred seventy-five thousand, two hundred sixty-two".