42821098 has 24 divisors (see below), whose sum is σ = 68470272. Its totient is φ = 20080872.

The previous prime is 42821087. The next prime is 42821159. The reversal of 42821098 is 89012824.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91461 + ... + 91927.

It is an arithmetic number, because the mean of its divisors is an integer number (2852928).

Almost surely, 2^42821098 is an apocalyptic number.

42821098 is a deficient number, since it is larger than the sum of its proper divisors (25649174).

42821098 is a wasteful number, since it uses less digits than its factorization.

42821098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 42821098 is about 6543.7831565540. The cubic root of 42821098 is about 349.8532663833.

The spelling of 42821098 in words is "forty-two million, eight hundred twenty-one thousand, ninety-eight".