1247504394 has 16 divisors (see below), whose sum is σ = 2626325280. Its totient is φ = 393948720.

The previous prime is 1247504371. The next prime is 1247504411. The reversal of 1247504394 is 4934057421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5471397 + ... + 5471624.

It is an arithmetic number, because the mean of its divisors is an integer number (164145330).

Almost surely, 2^1247504394 is an apocalyptic number.

1247504394 is an abundant number, since it is smaller than the sum of its proper divisors (1378820886).

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

1247504394 is a wasteful number, since it uses less digits than its factorization.

1247504394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10943045.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 1247504394 is about 35320.0282276218. The cubic root of 1247504394 is about 1076.4999847191.

The spelling of 1247504394 in words is "one billion, two hundred forty-seven million, five hundred four thousand, three hundred ninety-four".