1372073220 has 288 divisors, whose sum is σ = 5145504000. Its totient is φ = 288893952.

The previous prime is 1372073203. The next prime is 1372073231. The reversal of 1372073220 is 223702731.

It is a happy number.

1372073220 is a `hidden beast` number, since 1 + 372 + 0 + 73 + 220 = 666.

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 95 ways as a sum of consecutive naturals, for example, 885006 + ... + 886554.

Almost surely, 2^1372073220 is an apocalyptic number.

1372073220 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 1372073220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2572752000).

1372073220 is an abundant number, since it is smaller than the sum of its proper divisors (3773430780).

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

1372073220 is a wasteful number, since it uses less digits than its factorization.

1372073220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627 (or 1622 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 1372073220 is about 37041.5067188148. The cubic root of 1372073220 is about 1111.2005029487.

Adding to 1372073220 its reverse (223702731), we get a palindrome (1595775951).

The spelling of 1372073220 in words is "one billion, three hundred seventy-two million, seventy-three thousand, two hundred twenty".