1672416020 has 72 divisors (see below), whose sum is σ = 4028355072. Its totient is φ = 581690560.

The previous prime is 1672416013. The next prime is 1672416041. The reversal of 1672416020 is 206142761.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40637 + ... + 70683.

It is an arithmetic number, because the mean of its divisors is an integer number (55949376).

Almost surely, 2^1672416020 is an apocalyptic number.

1672416020 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 1672416020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2014177536).

1672416020 is an abundant number, since it is smaller than the sum of its proper divisors (2355939052).

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

1672416020 is a wasteful number, since it uses less digits than its factorization.

1672416020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30101 (or 30088 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1672416020 is about 40895.1833349601. The cubic root of 1672416020 is about 1186.9928592747.

Adding to 1672416020 its reverse (206142761), we get a palindrome (1878558781).

The spelling of 1672416020 in words is "one billion, six hundred seventy-two million, four hundred sixteen thousand, twenty".