1242627422 has 4 divisors (see below), whose sum is σ = 1863941136. Its totient is φ = 621313710.

The previous prime is 1242627367. The next prime is 1242627431. The reversal of 1242627422 is 2247262421.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310656854 + ... + 310656857.

It is an arithmetic number, because the mean of its divisors is an integer number (465985284).

Almost surely, 2^1242627422 is an apocalyptic number.

1242627422 is a deficient number, since it is larger than the sum of its proper divisors (621313714).

1242627422 is an equidigital number, since it uses as much as digits as its factorization.

1242627422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621313713.

The product of its digits is 21504, while the sum is 32.

The square root of 1242627422 is about 35250.9208674043. The cubic root of 1242627422 is about 1075.0953359113.

Adding to 1242627422 its reverse (2247262421), we get a palindrome (3489889843).

The spelling of 1242627422 in words is "one billion, two hundred forty-two million, six hundred twenty-seven thousand, four hundred twenty-two".