1244428830 has 48 divisors (see below), whose sum is σ = 3238466400. Its totient is φ = 331545024.

The previous prime is 1244428793. The next prime is 1244428841. The reversal of 1244428830 is 388244421.

It is a super-2 number, since 2×1244428830² = 3097206225870337800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103471 + ... + 114869.

It is an arithmetic number, because the mean of its divisors is an integer number (67468050).

Almost surely, 2^1244428830 is an apocalyptic number.

1244428830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1244428830 is an abundant number, since it is smaller than the sum of its proper divisors (1994037570).

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

1244428830 is a wasteful number, since it uses less digits than its factorization.

1244428830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12625 (or 12622 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 1244428830 is about 35276.4628328862. The cubic root of 1244428830 is about 1075.6145986180.

The spelling of 1244428830 in words is "one billion, two hundred forty-four million, four hundred twenty-eight thousand, eight hundred thirty".