1239471494 has 16 divisors (see below), whose sum is σ = 1885109760. Its totient is φ = 611138880.

The previous prime is 1239471439. The next prime is 1239471523. The reversal of 1239471494 is 4941749321.

It is a nialpdrome in base 14.

It is a congruent number.

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, 59084 + ... + 77264.

It is an arithmetic number, because the mean of its divisors is an integer number (117819360).

Almost surely, 2^1239471494 is an apocalyptic number.

1239471494 is a deficient number, since it is larger than the sum of its proper divisors (645638266).

1239471494 is a wasteful number, since it uses less digits than its factorization.

1239471494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18655.

The product of its digits is 217728, while the sum is 44.

The square root of 1239471494 is about 35206.1286426099. The cubic root of 1239471494 is about 1074.1844166141.

The spelling of 1239471494 in words is "one billion, two hundred thirty-nine million, four hundred seventy-one thousand, four hundred ninety-four".