612032280 has 32 divisors (see below), whose sum is σ = 1836097200. Its totient is φ = 163208576.

The previous prime is 612032279. The next prime is 612032299. The reversal of 612032280 is 82230216.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 612032280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2550015 + ... + 2550254.

Almost surely, 2^612032280 is an apocalyptic number.

612032280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

612032280 is an abundant number, since it is smaller than the sum of its proper divisors (1224064920).

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

612032280 is a wasteful number, since it uses less digits than its factorization.

612032280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100283 (or 5100279 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 612032280 is about 24739.2861659345. The cubic root of 612032280 is about 849.0334018027.

Adding to 612032280 its reverse (82230216), we get a palindrome (694262496).

The spelling of 612032280 in words is "six hundred twelve million, thirty-two thousand, two hundred eighty".