462138238 has 4 divisors (see below), whose sum is σ = 693207360. Its totient is φ = 231069118.

The previous prime is 462138233. The next prime is 462138269. The reversal of 462138238 is 832831264.

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

It is a junction number, because it is equal to n+sod(n) for n = 462138197 and 462138206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (462138233) by changing a digit.

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, 115534558 + ... + 115534561.

It is an arithmetic number, because the mean of its divisors is an integer number (173301840).

Almost surely, 2^462138238 is an apocalyptic number.

462138238 is a deficient number, since it is larger than the sum of its proper divisors (231069122).

462138238 is a wasteful number, since it uses less digits than its factorization.

462138238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231069121.

The product of its digits is 55296, while the sum is 37.

The square root of 462138238 is about 21497.4007265995. The cubic root of 462138238 is about 773.1385017924.

The spelling of 462138238 in words is "four hundred sixty-two million, one hundred thirty-eight thousand, two hundred thirty-eight".