1254440422 has 4 divisors (see below), whose sum is σ = 1881660636. Its totient is φ = 627220210.

The previous prime is 1254440381. The next prime is 1254440449. The reversal of 1254440422 is 2240444521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2240444521 = 7 ⋅320063503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313610104 + ... + 313610107.

It is an arithmetic number, because the mean of its divisors is an integer number (470415159).

Almost surely, 2^1254440422 is an apocalyptic number.

1254440422 is a deficient number, since it is larger than the sum of its proper divisors (627220214).

1254440422 is an equidigital number, since it uses as much as digits as its factorization.

1254440422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627220213.

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 1254440422 is about 35418.0804392333. The cubic root of 1254440422 is about 1078.4913841584.

Adding to 1254440422 its reverse (2240444521), we get a palindrome (3494884943).

The spelling of 1254440422 in words is "one billion, two hundred fifty-four million, four hundred forty thousand, four hundred twenty-two".