1239049490 has 16 divisors (see below), whose sum is σ = 2548901952. Its totient is φ = 424816944.

The previous prime is 1239049477. The next prime is 1239049519. The reversal of 1239049490 is 949409321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8850284 + ... + 8850423.

It is an arithmetic number, because the mean of its divisors is an integer number (159306372).

Almost surely, 2^1239049490 is an apocalyptic number.

1239049490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1239049490 is an abundant number, since it is smaller than the sum of its proper divisors (1309852462).

1239049490 is a wasteful number, since it uses less digits than its factorization.

1239049490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17700721.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 1239049490 is about 35200.1348008782. The cubic root of 1239049490 is about 1074.0624932571.

The spelling of 1239049490 in words is "one billion, two hundred thirty-nine million, forty-nine thousand, four hundred ninety".