1372446720 has 448 divisors, whose sum is σ = 5237317440. Its totient is φ = 339738624.

The previous prime is 1372446707. The next prime is 1372446727. The reversal of 1372446720 is 276442731.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372446727) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 18800604 + ... + 18800676.

Almost surely, 2^1372446720 is an apocalyptic number.

1372446720 is a gapful number since it is divisible by the number (10) 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 1372446720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2618658720).

1372446720 is an abundant number, since it is smaller than the sum of its proper divisors (3864870720).

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

1372446720 is an equidigital number, since it uses as much as digits as its factorization.

1372446720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 1372446720 is about 37046.5480173254. The cubic root of 1372446720 is about 1111.3013225765.

The spelling of 1372446720 in words is "one billion, three hundred seventy-two million, four hundred forty-six thousand, seven hundred twenty".