253820824 has 16 divisors (see below), whose sum is σ = 496606320. Its totient is φ = 121392480.

The previous prime is 253820813. The next prime is 253820849. The reversal of 253820824 is 428028352.

It is a happy number.

It is a super-4 number, since 4×253820824⁴ (a number of 35 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 253820824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689547 + ... + 689914.

It is an arithmetic number, because the mean of its divisors is an integer number (31037895).

Almost surely, 2^253820824 is an apocalyptic number.

It is an amenable number.

253820824 is a deficient number, since it is larger than the sum of its proper divisors (242785496).

253820824 is a wasteful number, since it uses less digits than its factorization.

253820824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379490 (or 1379486 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 253820824 is about 15931.7552077604. The cubic root of 253820824 is about 633.1536039098.

The spelling of 253820824 in words is "two hundred fifty-three million, eight hundred twenty thousand, eight hundred twenty-four".