20253372 has 12 divisors (see below), whose sum is σ = 47257896. Its totient is φ = 6751120.

The previous prime is 20253361. The next prime is 20253377. The reversal of 20253372 is 27335202.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20253377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843879 + ... + 843902.

It is an arithmetic number, because the mean of its divisors is an integer number (3938158).

Almost surely, 2^20253372 is an apocalyptic number.

It is an amenable number.

20253372 is an abundant number, since it is smaller than the sum of its proper divisors (27004524).

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

20253372 is a wasteful number, since it uses less digits than its factorization.

20253372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687788 (or 1687786 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 20253372 is about 4500.3746510707. The cubic root of 20253372 is about 272.5832172966.

Adding to 20253372 its reverse (27335202), we get a palindrome (47588574).

The spelling of 20253372 in words is "twenty million, two hundred fifty-three thousand, three hundred seventy-two".