1253394208 has 24 divisors (see below), whose sum is σ = 2691949680. Its totient is φ = 569724480.

The previous prime is 1253394199. The next prime is 1253394211. The reversal of 1253394208 is 8024933521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1780038 + ... + 1780741.

It is an arithmetic number, because the mean of its divisors is an integer number (112164570).

Almost surely, 2^1253394208 is an apocalyptic number.

It is an amenable number.

1253394208 is an abundant number, since it is smaller than the sum of its proper divisors (1438555472).

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

1253394208 is a wasteful number, since it uses less digits than its factorization.

1253394208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560800 (or 3560792 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 1253394208 is about 35403.3078680510. The cubic root of 1253394208 is about 1078.1914771001.

The spelling of 1253394208 in words is "one billion, two hundred fifty-three million, three hundred ninety-four thousand, two hundred eight".