253845420 has 24 divisors (see below), whose sum is σ = 710767344. Its totient is φ = 67692096.

The previous prime is 253845367. The next prime is 253845539. The reversal of 253845420 is 24548352.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2115319 + ... + 2115438.

It is an arithmetic number, because the mean of its divisors is an integer number (29615306).

Almost surely, 2^253845420 is an apocalyptic number.

253845420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253845420 is an abundant number, since it is smaller than the sum of its proper divisors (456921924).

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

253845420 is a wasteful number, since it uses less digits than its factorization.

253845420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4230769 (or 4230767 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 253845420 is about 15932.5271065202. The cubic root of 253845420 is about 633.1740547444.

The spelling of 253845420 in words is "two hundred fifty-three million, eight hundred forty-five thousand, four hundred twenty".