42298428 has 24 divisors (see below), whose sum is σ = 99292032. Its totient is φ = 14014384.

The previous prime is 42298423. The next prime is 42298439. The reversal of 42298428 is 82489224.

It is a super-2 number, since 2×42298428² = 3578314022542368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42298423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8550 + ... + 12557.

It is an arithmetic number, because the mean of its divisors is an integer number (4137168).

Almost surely, 2^42298428 is an apocalyptic number.

It is an amenable number.

42298428 is an abundant number, since it is smaller than the sum of its proper divisors (56993604).

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

42298428 is a wasteful number, since it uses less digits than its factorization.

42298428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21281 (or 21279 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The square root of 42298428 is about 6503.7241638926. The cubic root of 42298428 is about 348.4240108447.

The spelling of 42298428 in words is "forty-two million, two hundred ninety-eight thousand, four hundred twenty-eight".