1274479748 has 6 divisors (see below), whose sum is σ = 2230339566. Its totient is φ = 637239872.

The previous prime is 1274479747. The next prime is 1274479757. The reversal of 1274479748 is 8479744721.

It can be written as a sum of positive squares in only one way, i.e., 1242421504 + 32058244 = 35248^2 + 5662^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1274479748.

It is not an unprimeable number, because it can be changed into a prime (1274479747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159309965 + ... + 159309972.

It is an arithmetic number, because the mean of its divisors is an integer number (371723261).

Almost surely, 2^1274479748 is an apocalyptic number.

It is an amenable number.

1274479748 is a deficient number, since it is larger than the sum of its proper divisors (955859818).

1274479748 is a wasteful number, since it uses less digits than its factorization.

1274479748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318619941 (or 318619939 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 53.

The square root of 1274479748 is about 35699.8564142771. The cubic root of 1274479748 is about 1084.2039360227.

The spelling of 1274479748 in words is "one billion, two hundred seventy-four million, four hundred seventy-nine thousand, seven hundred forty-eight".