253333740 has 48 divisors (see below), whose sum is σ = 773821440. Its totient is φ = 61414080.

The previous prime is 253333739. The next prime is 253333771. The reversal of 253333740 is 47333352.

It is a happy number.

253333740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 253333698 and 253333707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191260 + ... + 192579.

It is an arithmetic number, because the mean of its divisors is an integer number (16121280).

Almost surely, 2^253333740 is an apocalyptic number.

253333740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253333740 is an abundant number, since it is smaller than the sum of its proper divisors (520487700).

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

253333740 is a wasteful number, since it uses less digits than its factorization.

253333740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383862 (or 383860 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 30.

The square root of 253333740 is about 15916.4612901235. The cubic root of 253333740 is about 632.7483357775.

The spelling of 253333740 in words is "two hundred fifty-three million, three hundred thirty-three thousand, seven hundred forty".