1274399152 has 40 divisors (see below), whose sum is σ = 2815507296. Its totient is φ = 553583616.

The previous prime is 1274399143. The next prime is 1274399183. The reversal of 1274399152 is 2519934721.

It is a junction number, because it is equal to n+sod(n) for n = 1274399099 and 1274399108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176668 + ... + 183739.

Almost surely, 2^1274399152 is an apocalyptic number.

It is an amenable number.

1274399152 is an abundant number, since it is smaller than the sum of its proper divisors (1541108144).

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

1274399152 is a wasteful number, since it uses less digits than its factorization.

1274399152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360445 (or 360439 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The square root of 1274399152 is about 35698.7275963724. The cubic root of 1274399152 is about 1084.1810811172.

The spelling of 1274399152 in words is "one billion, two hundred seventy-four million, three hundred ninety-nine thousand, one hundred fifty-two".