1244974380 has 48 divisors (see below), whose sum is σ = 3754078944. Its totient is φ = 306455040.

The previous prime is 1244974343. The next prime is 1244974387. The reversal of 1244974380 is 834794421.

It is a super-2 number, since 2×1244974380² = 3099922413712768800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1244974387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 797281 + ... + 798840.

It is an arithmetic number, because the mean of its divisors is an integer number (78209978).

Almost surely, 2^1244974380 is an apocalyptic number.

1244974380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244974380 is an abundant number, since it is smaller than the sum of its proper divisors (2509104564).

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

1244974380 is a wasteful number, since it uses less digits than its factorization.

1244974380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596146 (or 1596144 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 1244974380 is about 35284.1944785480. The cubic root of 1244974380 is about 1075.7717566118.

The spelling of 1244974380 in words is "one billion, two hundred forty-four million, nine hundred seventy-four thousand, three hundred eighty".