2146639238 has 16 divisors (see below), whose sum is σ = 3268226880. Its totient is φ = 1057320000.

The previous prime is 2146639207. The next prime is 2146639267. The reversal of 2146639238 is 8329366412.

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, 25988 + ... + 70488.

It is an arithmetic number, because the mean of its divisors is an integer number (204264180).

Almost surely, 2^2146639238 is an apocalyptic number.

2146639238 is a deficient number, since it is larger than the sum of its proper divisors (1121587642).

2146639238 is a wasteful number, since it uses less digits than its factorization.

2146639238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44863.

The product of its digits is 373248, while the sum is 44.

The square root of 2146639238 is about 46331.8382756394. The cubic root of 2146639238 is about 1289.9900321726.

The spelling of 2146639238 in words is "two billion, one hundred forty-six million, six hundred thirty-nine thousand, two hundred thirty-eight".