2372138738 has 4 divisors (see below), whose sum is σ = 3558208110. Its totient is φ = 1186069368.

The previous prime is 2372138687. The next prime is 2372138753. The reversal of 2372138738 is 8378312732.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2319096649 + 53042089 = 48157^2 + 7283^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 593034683 + ... + 593034686.

Almost surely, 2^2372138738 is an apocalyptic number.

2372138738 is a deficient number, since it is larger than the sum of its proper divisors (1186069372).

2372138738 is a wasteful number, since it uses less digits than its factorization.

2372138738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186069371.

The product of its digits is 338688, while the sum is 44.

The square root of 2372138738 is about 48704.6069484192. The cubic root of 2372138738 is about 1333.6648198446.

The spelling of 2372138738 in words is "two billion, three hundred seventy-two million, one hundred thirty-eight thousand, seven hundred thirty-eight".