1244880120 has 64 divisors (see below), whose sum is σ = 4074157440. Its totient is φ = 301788800.

The previous prime is 1244880107. The next prime is 1244880137. The reversal of 1244880120 is 210884421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470226 + ... + 472865.

It is an arithmetic number, because the mean of its divisors is an integer number (63658710).

Almost surely, 2^1244880120 is an apocalyptic number.

1244880120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244880120 is an abundant number, since it is smaller than the sum of its proper divisors (2829277320).

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

1244880120 is a wasteful number, since it uses less digits than its factorization.

1244880120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943116 (or 943112 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 1244880120 is about 35282.8587277165. The cubic root of 1244880120 is about 1075.7446061723.

The spelling of 1244880120 in words is "one billion, two hundred forty-four million, eight hundred eighty thousand, one hundred twenty".