1344972420 has 72 divisors (see below), whose sum is σ = 4450642560. Its totient is φ = 326053440.

The previous prime is 1344972413. The next prime is 1344972439. The reversal of 1344972420 is 242794431.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 337660 + ... + 341619.

It is an arithmetic number, because the mean of its divisors is an integer number (61814480).

Almost surely, 2^1344972420 is an apocalyptic number.

1344972420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1344972420 is an abundant number, since it is smaller than the sum of its proper divisors (3105670140).

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

1344972420 is a wasteful number, since it uses less digits than its factorization.

1344972420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679305 (or 679300 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 1344972420 is about 36673.8656266285. The cubic root of 1344972420 is about 1103.8357604606.

The spelling of 1344972420 in words is "one billion, three hundred forty-four million, nine hundred seventy-two thousand, four hundred twenty".