42628280 has 32 divisors (see below), whose sum is σ = 96217200. Its totient is φ = 16997376.

The previous prime is 42628273. The next prime is 42628303. The reversal of 42628280 is 8282624.

It is a happy number.

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, 12611 + ... + 15629.

Almost surely, 2^42628280 is an apocalyptic number.

42628280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42628280 is an abundant number, since it is smaller than the sum of its proper divisors (53588920).

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

42628280 is a wasteful number, since it uses less digits than its factorization.

42628280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3383 (or 3379 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 42628280 is about 6529.0336191507. The cubic root of 42628280 is about 349.3273611952.

The spelling of 42628280 in words is "forty-two million, six hundred twenty-eight thousand, two hundred eighty".