342722426 has 4 divisors (see below), whose sum is σ = 514083642. Its totient is φ = 171361212.

The previous prime is 342722417. The next prime is 342722441. The reversal of 342722426 is 624227243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624227243 = 71 ⋅8791933.

It can be written as a sum of positive squares in only one way, i.e., 262602025 + 80120401 = 16205^2 + 8951^2 .

It is a super-2 number, since 2×342722426² = 234917322566650952, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 342722392 and 342722401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85680605 + ... + 85680608.

Almost surely, 2^342722426 is an apocalyptic number.

342722426 is a deficient number, since it is larger than the sum of its proper divisors (171361216).

342722426 is a wasteful number, since it uses less digits than its factorization.

342722426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171361215.

The product of its digits is 32256, while the sum is 32.

The square root of 342722426 is about 18512.7638671269. The cubic root of 342722426 is about 699.8111231907.

Adding to 342722426 its reverse (624227243), we get a palindrome (966949669).

The spelling of 342722426 in words is "three hundred forty-two million, seven hundred twenty-two thousand, four hundred twenty-six".