2045672 has 8 divisors (see below), whose sum is σ = 3835650. Its totient is φ = 1022832.

The previous prime is 2045669. The next prime is 2045677. The reversal of 2045672 is 2765402.

It can be written as a sum of positive squares in only one way, i.e., 1653796 + 391876 = 1286^2 + 626^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2045677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127847 + ... + 127862.

2^2045672 is an apocalyptic number.

It is an amenable number.

2045672 is a deficient number, since it is larger than the sum of its proper divisors (1789978).

2045672 is a wasteful number, since it uses less digits than its factorization.

2045672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255715 (or 255711 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2045672 is about 1430.2699045984. The cubic root of 2045672 is about 126.9439478193.

The spelling of 2045672 in words is "two million, forty-five thousand, six hundred seventy-two".