253434620 has 48 divisors (see below), whose sum is σ = 541961280. Its totient is φ = 99534336.

The previous prime is 253434617. The next prime is 253434637. The reversal of 253434620 is 26434352.

It is a super-2 number, since 2×253434620² = 128458213229088800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307529 + ... + 308351.

It is an arithmetic number, because the mean of its divisors is an integer number (11290860).

Almost surely, 2^253434620 is an apocalyptic number.

253434620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253434620 is an abundant number, since it is smaller than the sum of its proper divisors (288526660).

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

253434620 is a wasteful number, since it uses less digits than its factorization.

253434620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 253434620 is about 15919.6300208265. The cubic root of 253434620 is about 632.8323135126.

Adding to 253434620 its reverse (26434352), we get a palindrome (279868972).

The spelling of 253434620 in words is "two hundred fifty-three million, four hundred thirty-four thousand, six hundred twenty".