1672447722 has 48 divisors (see below), whose sum is σ = 3703294560. Its totient is φ = 503125920.

The previous prime is 1672447717. The next prime is 1672447729. The reversal of 1672447722 is 2277442761.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1672447729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92628 + ... + 109200.

It is an arithmetic number, because the mean of its divisors is an integer number (77151970).

Almost surely, 2^1672447722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1672447722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1851647280).

1672447722 is an abundant number, since it is smaller than the sum of its proper divisors (2030846838).

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

1672447722 is a wasteful number, since it uses less digits than its factorization.

1672447722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16739 (or 16728 counting only the distinct ones).

The product of its digits is 263424, while the sum is 42.

The square root of 1672447722 is about 40895.5709337821. The cubic root of 1672447722 is about 1187.0003593643. Note that the first 3 decimals are identical.

It can be divided in two parts, 16724 and 47722, that added together give a palindrome (64446).

The spelling of 1672447722 in words is "one billion, six hundred seventy-two million, four hundred forty-seven thousand, seven hundred twenty-two".