672277842 has 72 divisors (see below), whose sum is σ = 1531445760. Its totient is φ = 212914800.

The previous prime is 672277841. The next prime is 672277843. The reversal of 672277842 is 248772276.

It is an interprime number because it is at equal distance from previous prime (672277841) and next prime (672277843).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672277841) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2812759 + ... + 2812997.

It is an arithmetic number, because the mean of its divisors is an integer number (21270080).

Almost surely, 2^672277842 is an apocalyptic number.

672277842 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 672277842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765722880).

672277842 is an abundant number, since it is smaller than the sum of its proper divisors (859167918).

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

672277842 is a wasteful number, since it uses less digits than its factorization.

672277842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 346 counting only the distinct ones).

The product of its digits is 526848, while the sum is 45.

The square root of 672277842 is about 25928.3212337398. The cubic root of 672277842 is about 876.0245270546.

The spelling of 672277842 in words is "six hundred seventy-two million, two hundred seventy-seven thousand, eight hundred forty-two".