2690145 has 16 divisors (see below), whose sum is σ = 4782720. Its totient is φ = 1434672.

The previous prime is 2690141. The next prime is 2690147. The reversal of 2690145 is 5410962.

It is not a de Polignac number, because 2690145 - 2² = 2690141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2690141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9829 + ... + 10098.

It is an arithmetic number, because the mean of its divisors is an integer number (298920).

2^2690145 is an apocalyptic number.

It is an amenable number.

2690145 is a deficient number, since it is larger than the sum of its proper divisors (2092575).

2690145 is a wasteful number, since it uses less digits than its factorization.

2690145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19941 (or 19935 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2690145 is about 1640.1661501202. The cubic root of 2690145 is about 139.0780404717.

The spelling of 2690145 in words is "two million, six hundred ninety thousand, one hundred forty-five".