1255046420 has 24 divisors (see below), whose sum is σ = 2790633384. Its totient is φ = 472487936.

The previous prime is 1255046381. The next prime is 1255046423. The reversal of 1255046420 is 246405521.

It can be written as a sum of positive squares in 4 ways, for example, as 444619396 + 810427024 = 21086^2 + 28468^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255046423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1845317 + ... + 1845996.

It is an arithmetic number, because the mean of its divisors is an integer number (116276391).

Almost surely, 2^1255046420 is an apocalyptic number.

1255046420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255046420 is an abundant number, since it is smaller than the sum of its proper divisors (1535586964).

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

1255046420 is a wasteful number, since it uses less digits than its factorization.

1255046420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691339 (or 3691337 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 1255046420 is about 35426.6343306840. The cubic root of 1255046420 is about 1078.6650229105.

The spelling of 1255046420 in words is "one billion, two hundred fifty-five million, forty-six thousand, four hundred twenty".