2101662 has 24 divisors (see below), whose sum is σ = 4641624. Its totient is φ = 687024.

The previous prime is 2101657. The next prime is 2101667. The reversal of 2101662 is 2661012.

It is a happy number.

2101662 is a `hidden beast` number, since 2 + 1 + 0 + 1 + 662 = 666.

It is an interprime number because it is at equal distance from previous prime (2101657) and next prime (2101667).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148 + ... + 2055.

It is an arithmetic number, because the mean of its divisors is an integer number (193401).

2^2101662 is an apocalyptic number.

2101662 is an abundant number, since it is smaller than the sum of its proper divisors (2539962).

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

2101662 is a wasteful number, since it uses less digits than its factorization.

2101662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264 (or 2261 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2101662 is about 1449.7110056835. The cubic root of 2101662 is about 128.0916904884.

Adding to 2101662 its reverse (2661012), we get a palindrome (4762674).

The spelling of 2101662 in words is "two million, one hundred one thousand, six hundred sixty-two".