1274870920 has 16 divisors (see below), whose sum is σ = 2868459660. Its totient is φ = 509948352.

The previous prime is 1274870843. The next prime is 1274870921. The reversal of 1274870920 is 290784721.

It can be written as a sum of positive squares in 2 ways, for example, as 1092566916 + 182304004 = 33054^2 + 13502^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 31871773 = 1274870920 / (1 + 2 + 7 + 4 + 8 + 7 + 0 + 9 + 2 + 0).

It is not an unprimeable number, because it can be changed into a prime (1274870921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15935847 + ... + 15935926.

Almost surely, 2^1274870920 is an apocalyptic number.

1274870920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1274870920 is an abundant number, since it is smaller than the sum of its proper divisors (1593588740).

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

1274870920 is a wasteful number, since it uses less digits than its factorization.

1274870920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31871784 (or 31871780 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 1274870920 is about 35705.3346154325. The cubic root of 1274870920 is about 1084.3148484270.

The spelling of 1274870920 in words is "one billion, two hundred seventy-four million, eight hundred seventy thousand, nine hundred twenty".