1304782990 has 32 divisors (see below), whose sum is σ = 2687215104. Its totient is φ = 446839200.

The previous prime is 1304782949. The next prime is 1304783003. The reversal of 1304782990 is 992874031.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53215 + ... + 73765.

It is an arithmetic number, because the mean of its divisors is an integer number (83975472).

Almost surely, 2^1304782990 is an apocalyptic number.

1304782990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1304782990 is an abundant number, since it is smaller than the sum of its proper divisors (1382432114).

1304782990 is a wasteful number, since it uses less digits than its factorization.

1304782990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21472.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 1304782990 is about 36121.7799949006. The cubic root of 1304782990 is about 1092.7297374977.

The spelling of 1304782990 in words is "one billion, three hundred four million, seven hundred eighty-two thousand, nine hundred ninety".