20265244 has 6 divisors (see below), whose sum is σ = 35464184. Its totient is φ = 10132620.

The previous prime is 20265199. The next prime is 20265247. The reversal of 20265244 is 44256202.

It is a super-2 number, since 2×20265244² = 821360228759072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20265247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2533152 + ... + 2533159.

Almost surely, 2^20265244 is an apocalyptic number.

It is an amenable number.

20265244 is a deficient number, since it is larger than the sum of its proper divisors (15198940).

20265244 is a wasteful number, since it uses less digits than its factorization.

20265244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5066315 (or 5066313 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 20265244 is about 4501.6934591329. The cubic root of 20265244 is about 272.6364672913.

The spelling of 20265244 in words is "twenty million, two hundred sixty-five thousand, two hundred forty-four".