1252486428 has 24 divisors (see below), whose sum is σ = 3016742400. Its totient is φ = 404027760.

The previous prime is 1252486427. The next prime is 1252486429. The reversal of 1252486428 is 8246842521.

It is an interprime number because it is at equal distance from previous prime (1252486427) and next prime (1252486429).

It is a self number, because there is not a number n which added to its sum of digits gives 1252486428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252486427) 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, 1683078 + ... + 1683821.

It is an arithmetic number, because the mean of its divisors is an integer number (125697600).

Almost surely, 2^1252486428 is an apocalyptic number.

It is an amenable number.

1252486428 is an abundant number, since it is smaller than the sum of its proper divisors (1764255972).

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

1252486428 is a wasteful number, since it uses less digits than its factorization.

1252486428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366937 (or 3366935 counting only the distinct ones).

The product of its digits is 245760, while the sum is 42.

The square root of 1252486428 is about 35390.4849924383. The cubic root of 1252486428 is about 1077.9311181911.

The spelling of 1252486428 in words is "one billion, two hundred fifty-two million, four hundred eighty-six thousand, four hundred twenty-eight".