2154768 has 120 divisors (see below), whose sum is σ = 7124544. Its totient is φ = 549120.

The previous prime is 2154749. The next prime is 2154791. The reversal of 2154768 is 8674512.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40630 + ... + 40682.

2^2154768 is an apocalyptic number.

2154768 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2154768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3562272).

2154768 is an abundant number, since it is smaller than the sum of its proper divisors (4969776).

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

2154768 is a wasteful number, since it uses less digits than its factorization.

2154768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 76 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 2154768 is about 1467.9128039499. The cubic root of 2154768 is about 129.1616266273.

The spelling of 2154768 in words is "two million, one hundred fifty-four thousand, seven hundred sixty-eight".