1252860428 has 24 divisors (see below), whose sum is σ = 2235981888. Its totient is φ = 614030976.

The previous prime is 1252860377. The next prime is 1252860449. The reversal of 1252860428 is 8240682521.

It is a junction number, because it is equal to n+sod(n) for n = 1252860391 and 1252860400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299600 + ... + 303752.

It is an arithmetic number, because the mean of its divisors is an integer number (93165912).

Almost surely, 2^1252860428 is an apocalyptic number.

It is an amenable number.

1252860428 is a deficient number, since it is larger than the sum of its proper divisors (983121460).

1252860428 is a wasteful number, since it uses less digits than its factorization.

1252860428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5633 (or 5631 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 1252860428 is about 35395.7685041588. The cubic root of 1252860428 is about 1078.0383997575.

The spelling of 1252860428 in words is "one billion, two hundred fifty-two million, eight hundred sixty thousand, four hundred twenty-eight".