1694044149 has 32 divisors (see below), whose sum is σ = 2658268416. Its totient is φ = 939340800.

The previous prime is 1694044127. The next prime is 1694044151. The reversal of 1694044149 is 9414404961.

It is not a de Polignac number, because 1694044149 - 2⁵ = 1694044117 is a prime.

It is a super-2 number, since 2×1694044149² = 5739571157522268402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1694044149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1694044249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 308859 + ... + 314295.

It is an arithmetic number, because the mean of its divisors is an integer number (83070888).

Almost surely, 2^1694044149 is an apocalyptic number.

It is an amenable number.

1694044149 is a deficient number, since it is larger than the sum of its proper divisors (964224267).

1694044149 is a wasteful number, since it uses less digits than its factorization.

1694044149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5885.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 1694044149 is about 41158.7675835903. The cubic root of 1694044149 is about 1192.0877948055.

The spelling of 1694044149 in words is "one billion, six hundred ninety-four million, forty-four thousand, one hundred forty-nine".