20253342 has 16 divisors (see below), whose sum is σ = 41171472. Its totient is φ = 6640320.

The previous prime is 20253241. The next prime is 20253347. The reversal of 20253342 is 24335202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20253347) 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, 27303 + ... + 28034.

It is an arithmetic number, because the mean of its divisors is an integer number (2573217).

Almost surely, 2^20253342 is an apocalyptic number.

20253342 is an abundant number, since it is smaller than the sum of its proper divisors (20918130).

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

20253342 is a wasteful number, since it uses less digits than its factorization.

20253342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55403.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 20253342 is about 4500.3713180137. The cubic root of 20253342 is about 272.5830827099.

Adding to 20253342 its reverse (24335202), we get a palindrome (44588544).

The spelling of 20253342 in words is "twenty million, two hundred fifty-three thousand, three hundred forty-two".