1012256442 has 12 divisors (see below), whose sum is σ = 2193222330. Its totient is φ = 337418808.

The previous prime is 1012256431. The next prime is 1012256461. The reversal of 1012256442 is 2446522101.

1012256442 is a `hidden beast` number, since 1 + 0 + 12 + 2 + 5 + 644 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 606193641 + 406062801 = 24621^2 + 20151^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28118217 + ... + 28118252.

Almost surely, 2^1012256442 is an apocalyptic number.

1012256442 is an abundant number, since it is smaller than the sum of its proper divisors (1180965888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012256442 is a wasteful number, since it uses less digits than its factorization.

1012256442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56236477 (or 56236474 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1012256442 is about 31815.9777784685. The cubic root of 1012256442 is about 1004.0689022463.

Adding to 1012256442 its reverse (2446522101), we get a palindrome (3458778543).

It can be divided in two parts, 10122 and 56442, that added together give a square (66564 = 258²).

The spelling of 1012256442 in words is "one billion, twelve million, two hundred fifty-six thousand, four hundred forty-two".