2665738 has 32 divisors (see below), whose sum is σ = 4536000. Its totient is φ = 1169280.

The previous prime is 2665727. The next prime is 2665763. The reversal of 2665738 is 8375662.

It is a junction number, because it is equal to n+sod(n) for n = 2665697 and 2665706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45153 + ... + 45211.

It is an arithmetic number, because the mean of its divisors is an integer number (141750).

2^2665738 is an apocalyptic number.

2665738 is a deficient number, since it is larger than the sum of its proper divisors (1870262).

2665738 is a wasteful number, since it uses less digits than its factorization.

2665738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150.

The product of its digits is 60480, while the sum is 37.

The square root of 2665738 is about 1632.7087921611. The cubic root of 2665738 is about 138.6561554635.

It can be divided in two parts, 2665 and 738, that added together give a triangular number (3403 = T₈₂).

The spelling of 2665738 in words is "two million, six hundred sixty-five thousand, seven hundred thirty-eight".