280604412 has 120 divisors (see below), whose sum is σ = 819299712. Its totient is φ = 83008800.

The previous prime is 280604383. The next prime is 280604417. The reversal of 280604412 is 214406082.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280604417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 152337 + ... + 154167.

Almost surely, 2^280604412 is an apocalyptic number.

280604412 is a gapful number since it is divisible by the number (22) 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 280604412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409649856).

280604412 is an abundant number, since it is smaller than the sum of its proper divisors (538695300).

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

280604412 is a wasteful number, since it uses less digits than its factorization.

280604412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901 (or 1890 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 280604412 is about 16751.2510577569. The cubic root of 280604412 is about 654.6836550986.

The spelling of 280604412 in words is "two hundred eighty million, six hundred four thousand, four hundred twelve".