253833380 has 24 divisors (see below), whose sum is σ = 536327232. Its totient is φ = 100909152.

The previous prime is 253833373. The next prime is 253833389. The reversal of 253833380 is 83338352.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 253833380.

It is not an unprimeable number, because it can be changed into a prime (253833389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35672 + ... + 42191.

It is an arithmetic number, because the mean of its divisors is an integer number (22346968).

Almost surely, 2^253833380 is an apocalyptic number.

253833380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253833380 is an abundant number, since it is smaller than the sum of its proper divisors (282493852).

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

253833380 is a wasteful number, since it uses less digits than its factorization.

253833380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78035 (or 78033 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 253833380 is about 15932.1492586531. The cubic root of 253833380 is about 633.1640440114.

The spelling of 253833380 in words is "two hundred fifty-three million, eight hundred thirty-three thousand, three hundred eighty".