253227840 has 224 divisors, whose sum is σ = 848953344. Its totient is φ = 63866880.

The previous prime is 253227833. The next prime is 253227841. The reversal of 253227840 is 48722352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253227841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1993857 + ... + 1993983.

Almost surely, 2^253227840 is an apocalyptic number.

253227840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253227840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (424476672).

253227840 is an abundant number, since it is smaller than the sum of its proper divisors (595725504).

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

253227840 is a wasteful number, since it uses less digits than its factorization.

253227840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 253227840 is about 15913.1341978882. The cubic root of 253227840 is about 632.6601551454.

The spelling of 253227840 in words is "two hundred fifty-three million, two hundred twenty-seven thousand, eight hundred forty".