2142558 has 32 divisors (see below), whose sum is σ = 5195520. Its totient is φ = 649080.

The previous prime is 2142557. The next prime is 2142577. The reversal of 2142558 is 8552412.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1210 + ... + 2397.

It is an arithmetic number, because the mean of its divisors is an integer number (162360).

2^2142558 is an apocalyptic number.

2142558 is an abundant number, since it is smaller than the sum of its proper divisors (3052962).

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

2142558 is a wasteful number, since it uses less digits than its factorization.

2142558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3629 (or 3623 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 2142558 is about 1463.7479291189. The cubic root of 2142558 is about 128.9171994336.

It can be divided in two parts, 214 and 2558, that added together give a palindrome (2772).

The spelling of 2142558 in words is "two million, one hundred forty-two thousand, five hundred fifty-eight".