1256030422 has 4 divisors (see below), whose sum is σ = 1884045636. Its totient is φ = 628015210.

The previous prime is 1256030393. The next prime is 1256030423. The reversal of 1256030422 is 2240306521.

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

It is a super-2 number, since 2×1256030422² = 3155224841978996168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256030423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314007604 + ... + 314007607.

It is an arithmetic number, because the mean of its divisors is an integer number (471011409).

Almost surely, 2^1256030422 is an apocalyptic number.

1256030422 is a deficient number, since it is larger than the sum of its proper divisors (628015214).

1256030422 is an equidigital number, since it uses as much as digits as its factorization.

1256030422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628015213.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1256030422 is about 35440.5194939352. The cubic root of 1256030422 is about 1078.9468534599.

Adding to 1256030422 its reverse (2240306521), we get a palindrome (3496336943).

The spelling of 1256030422 in words is "one billion, two hundred fifty-six million, thirty thousand, four hundred twenty-two".