1394303690 has 32 divisors (see below), whose sum is σ = 2707326720. Its totient is φ = 513958464.

The previous prime is 1394303683. The next prime is 1394303711. The reversal of 1394303690 is 963034931.

It is a super-2 number, since 2×1394303690² = 3888165559895232200, which contains 22 as substring.

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, 71807 + ... + 89133.

It is an arithmetic number, because the mean of its divisors is an integer number (84603960).

Almost surely, 2^1394303690 is an apocalyptic number.

1394303690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1394303690 is a deficient number, since it is larger than the sum of its proper divisors (1313023030).

1394303690 is a wasteful number, since it uses less digits than its factorization.

1394303690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17966.

The product of its (nonzero) digits is 52488, while the sum is 38.

The square root of 1394303690 is about 37340.3761362951. The cubic root of 1394303690 is about 1117.1696417828.

The spelling of 1394303690 in words is "one billion, three hundred ninety-four million, three hundred three thousand, six hundred ninety".