20254190 has 48 divisors (see below), whose sum is σ = 42230160. Its totient is φ = 6969600.

The previous prime is 20254183. The next prime is 20254219. The reversal of 20254190 is 9145202.

It is a super-2 number, since 2×20254190² = 820464425112200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22550 + ... + 23430.

It is an arithmetic number, because the mean of its divisors is an integer number (879795).

Almost surely, 2^20254190 is an apocalyptic number.

20254190 is an abundant number, since it is smaller than the sum of its proper divisors (21975970).

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

20254190 is a wasteful number, since it uses less digits than its factorization.

20254190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 918 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 20254190 is about 4500.4655314756. The cubic root of 20254190 is about 272.5868869747.

Adding to 20254190 its reverse (9145202), we get a palindrome (29399392).

The spelling of 20254190 in words is "twenty million, two hundred fifty-four thousand, one hundred ninety".