2043764 has 6 divisors (see below), whose sum is σ = 3576594. Its totient is φ = 1021880.

The previous prime is 2043763. The next prime is 2043779. The reversal of 2043764 is 4673402.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1304164 + 739600 = 1142^2 + 860^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255467 + ... + 255474.

It is an arithmetic number, because the mean of its divisors is an integer number (596099).

2^2043764 is an apocalyptic number.

It is an amenable number.

2043764 is a deficient number, since it is larger than the sum of its proper divisors (1532830).

2043764 is a wasteful number, since it uses less digits than its factorization.

2043764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510945 (or 510943 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 2043764 is about 1429.6027420231. The cubic root of 2043764 is about 126.9044686336.

The spelling of 2043764 in words is "two million, forty-three thousand, seven hundred sixty-four".