1253827628 has 6 divisors (see below), whose sum is σ = 2194198356. Its totient is φ = 626913812.

The previous prime is 1253827577. The next prime is 1253827649. The reversal of 1253827628 is 8267283521.

It is a super-2 number, since 2×1253827628² = 3144167441472212768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156728450 + ... + 156728457.

It is an arithmetic number, because the mean of its divisors is an integer number (365699726).

Almost surely, 2^1253827628 is an apocalyptic number.

It is an amenable number.

1253827628 is a deficient number, since it is larger than the sum of its proper divisors (940370728).

1253827628 is a wasteful number, since it uses less digits than its factorization.

1253827628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313456911 (or 313456909 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 1253827628 is about 35409.4285184045. The cubic root of 1253827628 is about 1078.3157412496.

The spelling of 1253827628 in words is "one billion, two hundred fifty-three million, eight hundred twenty-seven thousand, six hundred twenty-eight".