2142638 has 16 divisors (see below), whose sum is σ = 3317760. Its totient is φ = 1037400.

The previous prime is 2142601. The next prime is 2142641. The reversal of 2142638 is 8362412.

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, 11123 + ... + 11313.

It is an arithmetic number, because the mean of its divisors is an integer number (207360).

2^2142638 is an apocalyptic number.

2142638 is a deficient number, since it is larger than the sum of its proper divisors (1175122).

2142638 is a wasteful number, since it uses less digits than its factorization.

2142638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343.

The product of its digits is 2304, while the sum is 26.

The square root of 2142638 is about 1463.7752559734. The cubic root of 2142638 is about 128.9188039405.

The spelling of 2142638 in words is "two million, one hundred forty-two thousand, six hundred thirty-eight".