231377422 has 4 divisors (see below), whose sum is σ = 347066136. Its totient is φ = 115688710.

The previous prime is 231377411. The next prime is 231377423. The reversal of 231377422 is 224773132.

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

It is a super-2 number, since 2×231377422² = 107071022822732168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231377423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57844354 + ... + 57844357.

It is an arithmetic number, because the mean of its divisors is an integer number (86766534).

Almost surely, 2^231377422 is an apocalyptic number.

231377422 is a deficient number, since it is larger than the sum of its proper divisors (115688714).

231377422 is a wasteful number, since it uses less digits than its factorization.

231377422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115688713.

The product of its digits is 14112, while the sum is 31.

The square root of 231377422 is about 15211.0953583231. The cubic root of 231377422 is about 613.9132299654.

The spelling of 231377422 in words is "two hundred thirty-one million, three hundred seventy-seven thousand, four hundred twenty-two".