1244907612 has 72 divisors (see below), whose sum is σ = 3461080896. Its totient is φ = 374891904.

The previous prime is 1244907593. The next prime is 1244907647. The reversal of 1244907612 is 2167094421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 6303 + ... + 50294.

It is an arithmetic number, because the mean of its divisors is an integer number (48070568).

Almost surely, 2^1244907612 is an apocalyptic number.

1244907612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1244907612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1730540448).

1244907612 is an abundant number, since it is smaller than the sum of its proper divisors (2216173284).

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

1244907612 is a wasteful number, since it uses less digits than its factorization.

1244907612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56667 (or 56662 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1244907612 is about 35283.2483198472. The cubic root of 1244907612 is about 1075.7525250480.

The spelling of 1244907612 in words is "one billion, two hundred forty-four million, nine hundred seven thousand, six hundred twelve".