2100342 has 16 divisors (see below), whose sum is σ = 4314672. Its totient is φ = 681120.

The previous prime is 2100313. The next prime is 2100353. The reversal of 2100342 is 2430012.

It is a super-2 number, since 2×2100342² = 8822873033928, which contains 22 as substring.

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, 4509 + ... + 4952.

It is an arithmetic number, because the mean of its divisors is an integer number (269667).

2^2100342 is an apocalyptic number.

2100342 is an abundant number, since it is smaller than the sum of its proper divisors (2214330).

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

2100342 is a wasteful number, since it uses less digits than its factorization.

2100342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9503.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2100342 is about 1449.2556710256. The cubic root of 2100342 is about 128.0648678369.

Adding to 2100342 its reverse (2430012), we get a palindrome (4530354).

It can be divided in two parts, 2100 and 342, that added together give a palindrome (2442).

The spelling of 2100342 in words is "two million, one hundred thousand, three hundred forty-two".