1674720905 has 32 divisors (see below), whose sum is σ = 2437198848. Its totient is φ = 1088006400.

The previous prime is 1674720893. The next prime is 1674720911. The reversal of 1674720905 is 5090274761.

It is not a de Polignac number, because 1674720905 - 2⁴ = 1674720889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15614 + ... + 59943.

It is an arithmetic number, because the mean of its divisors is an integer number (76162464).

Almost surely, 2^1674720905 is an apocalyptic number.

It is an amenable number.

1674720905 is a deficient number, since it is larger than the sum of its proper divisors (762477943).

1674720905 is a wasteful number, since it uses less digits than its factorization.

1674720905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75617.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 1674720905 is about 40923.3540292093. The cubic root of 1674720905 is about 1187.5379043118.

The spelling of 1674720905 in words is "one billion, six hundred seventy-four million, seven hundred twenty thousand, nine hundred five".