1672267212 has 144 divisors (see below), whose sum is σ = 5322250752. Its totient is φ = 430064640.

The previous prime is 1672267211. The next prime is 1672267213. The reversal of 1672267212 is 2127622761.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1672267211) and next prime (1672267213).

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1672267211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 282588 + ... + 288444.

Almost surely, 2^1672267212 is an apocalyptic number.

1672267212 is a gapful number since it is divisible by the number (12) 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 1672267212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2661125376).

1672267212 is an abundant number, since it is smaller than the sum of its proper divisors (3649983540).

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

1672267212 is a wasteful number, since it uses less digits than its factorization.

1672267212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5988 (or 5983 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 1672267212 is about 40893.3639115199. The cubic root of 1672267212 is about 1186.9576528687.

Adding to 1672267212 its reverse (2127622761), we get a palindrome (3799889973).

The spelling of 1672267212 in words is "one billion, six hundred seventy-two million, two hundred sixty-seven thousand, two hundred twelve".