1244422040 has 32 divisors (see below), whose sum is σ = 2801386080. Its totient is φ = 497513472.

The previous prime is 1244422031. The next prime is 1244422051. The reversal of 1244422040 is 402244421.

It is a super-3 number, since 3×1244422040³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1244421997 and 1244422015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84077 + ... + 97763.

It is an arithmetic number, because the mean of its divisors is an integer number (87543315).

Almost surely, 2^1244422040 is an apocalyptic number.

1244422040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244422040 is an abundant number, since it is smaller than the sum of its proper divisors (1556964040).

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

1244422040 is a wasteful number, since it uses less digits than its factorization.

1244422040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15971 (or 15967 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 1244422040 is about 35276.3665929472. The cubic root of 1244422040 is about 1075.6126423159.

Adding to 1244422040 its reverse (402244421), we get a palindrome (1646666461).

The spelling of 1244422040 in words is "one billion, two hundred forty-four million, four hundred twenty-two thousand, forty".