1672518320 has 160 divisors (see below), whose sum is σ = 4535066880. Its totient is φ = 567198720.

The previous prime is 1672518319. The next prime is 1672518389. The reversal of 1672518320 is 238152761.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1119494 + ... + 1120986.

It is an arithmetic number, because the mean of its divisors is an integer number (28344168).

Almost surely, 2^1672518320 is an apocalyptic number.

1672518320 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 1672518320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2267533440).

1672518320 is an abundant number, since it is smaller than the sum of its proper divisors (2862548560).

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

1672518320 is a wasteful number, since it uses less digits than its factorization.

1672518320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603 (or 1597 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1672518320 is about 40896.4340743787. The cubic root of 1672518320 is about 1187.0170611663.

It can be divided in two parts, 167251 and 8320, that added together give a palindrome (175571).

The spelling of 1672518320 in words is "one billion, six hundred seventy-two million, five hundred eighteen thousand, three hundred twenty".