2150660 has 24 divisors (see below), whose sum is σ = 4548096. Its totient is φ = 854240.

The previous prime is 2150657. The next prime is 2150663. The reversal of 2150660 is 660512.

It is an interprime number because it is at equal distance from previous prime (2150657) and next prime (2150663).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (2150663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3539 + ... + 4101.

It is an arithmetic number, because the mean of its divisors is an integer number (189504).

2^2150660 is an apocalyptic number.

2150660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2150660 is an abundant number, since it is smaller than the sum of its proper divisors (2397436).

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

2150660 is a wasteful number, since it uses less digits than its factorization.

2150660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2150660 is about 1466.5128707243. The cubic root of 2150660 is about 129.0794934992.

The spelling of 2150660 in words is "two million, one hundred fifty thousand, six hundred sixty".