1694009376 has 84 divisors (see below), whose sum is σ = 5000402862. Its totient is φ = 564662016.

The previous prime is 1694009371. The next prime is 1694009389. The reversal of 1694009376 is 6739004961.

It can be written as a sum of positive squares in only one way, i.e., 947408400 + 746600976 = 30780^2 + 27324^2 .

It is not an unprimeable number, because it can be changed into a prime (1694009371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 12981 + ... + 59636.

Almost surely, 2^1694009376 is an apocalyptic number.

1694009376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1694009376 is an abundant number, since it is smaller than the sum of its proper divisors (3306393486).

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

1694009376 is an frugal number, since it uses more digits than its factorization.

1694009376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72645 (or 72622 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 1694009376 is about 41158.3451562378. The cubic root of 1694009376 is about 1192.0796382388.

The spelling of 1694009376 in words is "one billion, six hundred ninety-four million, nine thousand, three hundred seventy-six".