1274857220 has 48 divisors (see below), whose sum is σ = 3295020288. Its totient is φ = 403470720.

The previous prime is 1274857201. The next prime is 1274857267. The reversal of 1274857220 is 227584721.

It is a super-2 number, since 2×1274857220² = 3250521862772256800, which contains 22 as substring.

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, 348416 + ... + 352055.

It is an arithmetic number, because the mean of its divisors is an integer number (68646256).

Almost surely, 2^1274857220 is an apocalyptic number.

1274857220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1274857220 is an abundant number, since it is smaller than the sum of its proper divisors (2020163068).

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

1274857220 is a wasteful number, since it uses less digits than its factorization.

1274857220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700500 (or 700498 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 38.

The square root of 1274857220 is about 35705.1427668340. The cubic root of 1274857220 is about 1084.3109643300.

The spelling of 1274857220 in words is "one billion, two hundred seventy-four million, eight hundred fifty-seven thousand, two hundred twenty".