2154264 has 32 divisors (see below), whose sum is σ = 6155520. Its totient is φ = 615456.

The previous prime is 2154259. The next prime is 2154281. The reversal of 2154264 is 4624512.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 6244 + ... + 6579.

It is an arithmetic number, because the mean of its divisors is an integer number (192360).

2^2154264 is an apocalyptic number.

2154264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2154264 is an abundant number, since it is smaller than the sum of its proper divisors (4001256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2154264 is a wasteful number, since it uses less digits than its factorization.

2154264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12839 (or 12835 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 2154264 is about 1467.7411215879. The cubic root of 2154264 is about 129.1515555452.

Adding to 2154264 its reverse (4624512), we get a palindrome (6778776).

It can be divided in two parts, 21 and 54264, that added together give a triangular number (54285 = T₃₂₉).

The spelling of 2154264 in words is "two million, one hundred fifty-four thousand, two hundred sixty-four".