2640154 has 16 divisors (see below), whose sum is σ = 4427136. Its totient is φ = 1170400.

The previous prime is 2640139. The next prime is 2640163. The reversal of 2640154 is 4510462.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562 + ... + 2365.

It is an arithmetic number, because the mean of its divisors is an integer number (276696).

2^2640154 is an apocalyptic number.

2640154 is a deficient number, since it is larger than the sum of its proper divisors (1786982).

2640154 is a wasteful number, since it uses less digits than its factorization.

2640154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2640154 is about 1624.8550704601. The cubic root of 2640154 is about 138.2111519348.

The spelling of 2640154 in words is "two million, six hundred forty thousand, one hundred fifty-four".