1255464442 has 8 divisors (see below), whose sum is σ = 1883556576. Its totient is φ = 627612252.

The previous prime is 1255464377. The next prime is 1255464449. The reversal of 1255464442 is 2444645521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1255464449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46278 + ... + 68209.

It is an arithmetic number, because the mean of its divisors is an integer number (235444572).

Almost surely, 2^1255464442 is an apocalyptic number.

1255464442 is a deficient number, since it is larger than the sum of its proper divisors (628092134).

1255464442 is a wasteful number, since it uses less digits than its factorization.

1255464442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119972.

The product of its digits is 153600, while the sum is 37.

The square root of 1255464442 is about 35432.5336661097. The cubic root of 1255464442 is about 1078.7847676601.

The spelling of 1255464442 in words is "one billion, two hundred fifty-five million, four hundred sixty-four thousand, four hundred forty-two".