1274460399 has 56 divisors (see below), whose sum is σ = 1966613040. Its totient is φ = 825251328.

The previous prime is 1274460389. The next prime is 1274460409. The reversal of 1274460399 is 9930644721.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1274460389) and next prime (1274460409).

It is a de Polignac number, because none of the positive numbers 2^k-1274460399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1274460349) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 4737637 + ... + 4737905.

It is an arithmetic number, because the mean of its divisors is an integer number (35118090).

Almost surely, 2^1274460399 is an apocalyptic number.

1274460399 is a deficient number, since it is larger than the sum of its proper divisors (692152641).

1274460399 is an frugal number, since it uses more digits than its factorization.

1274460399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 1274460399 is about 35699.5854177608. The cubic root of 1274460399 is about 1084.1984492432.

The spelling of 1274460399 in words is "one billion, two hundred seventy-four million, four hundred sixty thousand, three hundred ninety-nine".