42423202 has 4 divisors (see below), whose sum is σ = 63634806. Its totient is φ = 21211600.

The previous prime is 42423197. The next prime is 42423203. The reversal of 42423202 is 20232424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 41075281 + 1347921 = 6409^2 + 1161^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42423202.

It is not an unprimeable number, because it can be changed into a prime (42423203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10605799 + ... + 10605802.

Almost surely, 2^42423202 is an apocalyptic number.

42423202 is a deficient number, since it is larger than the sum of its proper divisors (21211604).

42423202 is a wasteful number, since it uses less digits than its factorization.

42423202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21211603.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 42423202 is about 6513.3096041874. The cubic root of 42423202 is about 348.7662739972.

Adding to 42423202 its reverse (20232424), we get a palindrome (62655626).

The spelling of 42423202 in words is "forty-two million, four hundred twenty-three thousand, two hundred two".