1244371040 has 48 divisors (see below), whose sum is σ = 3207088080. Its totient is φ = 452497920.

The previous prime is 1244371039. The next prime is 1244371043. The reversal of 1244371040 is 401734421.

It is a super-3 number, since 3×1244371040³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244371043) 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, 351755 + ... + 355274.

It is an arithmetic number, because the mean of its divisors is an integer number (66814335).

Almost surely, 2^1244371040 is an apocalyptic number.

1244371040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244371040 is an abundant number, since it is smaller than the sum of its proper divisors (1962717040).

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

1244371040 is a wasteful number, since it uses less digits than its factorization.

1244371040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707055 (or 707047 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 1244371040 is about 35275.6437219791. The cubic root of 1244371040 is about 1075.5979482136.

The spelling of 1244371040 in words is "one billion, two hundred forty-four million, three hundred seventy-one thousand, forty".