2154644 has 12 divisors (see below), whose sum is σ = 3858624. Its totient is φ = 1052184.

The previous prime is 2154643. The next prime is 2154667. The reversal of 2154644 is 4464512.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6092 + ... + 6435.

It is an arithmetic number, because the mean of its divisors is an integer number (321552).

2^2154644 is an apocalyptic number.

It is an amenable number.

2154644 is a deficient number, since it is larger than the sum of its proper divisors (1703980).

2154644 is a wasteful number, since it uses less digits than its factorization.

2154644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12574 (or 12572 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 2154644 is about 1467.8705665010. The cubic root of 2154644 is about 129.1591489670.

The spelling of 2154644 in words is "two million, one hundred fifty-four thousand, six hundred forty-four".