42230997 has 8 divisors (see below), whose sum is σ = 62564480. Its totient is φ = 28153980.

The previous prime is 42230953. The next prime is 42230999. The reversal of 42230997 is 79903224.

It is not a de Polignac number, because 42230997 - 2²² = 38036693 is a prime.

It is a super-2 number, since 2×42230997² = 3566914215228018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42230999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782029 + ... + 782082.

It is an arithmetic number, because the mean of its divisors is an integer number (7820560).

Almost surely, 2^42230997 is an apocalyptic number.

It is an amenable number.

42230997 is a deficient number, since it is larger than the sum of its proper divisors (20333483).

42230997 is a wasteful number, since it uses less digits than its factorization.

42230997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564120 (or 1564114 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 42230997 is about 6498.5380663654. The cubic root of 42230997 is about 348.2387630198.

The spelling of 42230997 in words is "forty-two million, two hundred thirty thousand, nine hundred ninety-seven".