42428304 has 30 divisors (see below), whose sum is σ = 118740726. Its totient is φ = 14142720.

The previous prime is 42428303. The next prime is 42428333. The reversal of 42428304 is 40382424.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 29811600 + 12616704 = 5460^2 + 3552^2 .

It is a super-3 number, since 3×42428304³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42428303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 147177 + ... + 147464.

Almost surely, 2^42428304 is an apocalyptic number.

It is an amenable number.

42428304 is an abundant number, since it is smaller than the sum of its proper divisors (76312422).

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

42428304 is a wasteful number, since it uses less digits than its factorization.

42428304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294655 (or 294646 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 42428304 is about 6513.7012519765. The cubic root of 42428304 is about 348.7802548231.

The spelling of 42428304 in words is "forty-two million, four hundred twenty-eight thousand, three hundred four".