20245392 has 30 divisors (see below), whose sum is σ = 56659382. Its totient is φ = 6748416.

The previous prime is 20245369. The next prime is 20245399. The reversal of 20245392 is 29354202.

20245392 is a `hidden beast` number, since 202 + 453 + 9 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19927296 + 318096 = 4464^2 + 564^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20245399) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70153 + ... + 70440.

Almost surely, 2^20245392 is an apocalyptic number.

It is an amenable number.

20245392 is an abundant number, since it is smaller than the sum of its proper divisors (36413990).

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

20245392 is a wasteful number, since it uses less digits than its factorization.

20245392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140607 (or 140598 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 20245392 is about 4499.4879708696. The cubic root of 20245392 is about 272.5474125621.

Adding to 20245392 its reverse (29354202), we get a palindrome (49599594).

The spelling of 20245392 in words is "twenty million, two hundred forty-five thousand, three hundred ninety-two".