42280022 has 4 divisors (see below), whose sum is σ = 63420036. Its totient is φ = 21140010.

The previous prime is 42280013. The next prime is 42280031. The reversal of 42280022 is 22008224.

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

It is an interprime number because it is at equal distance from previous prime (42280013) and next prime (42280031).

It is a junction number, because it is equal to n+sod(n) for n = 42279976 and 42280003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10570004 + ... + 10570007.

It is an arithmetic number, because the mean of its divisors is an integer number (15855009).

Almost surely, 2^42280022 is an apocalyptic number.

42280022 is a deficient number, since it is larger than the sum of its proper divisors (21140014).

42280022 is a wasteful number, since it uses less digits than its factorization.

42280022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21140013.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 42280022 is about 6502.3089745105. The cubic root of 42280022 is about 348.3734650516.

Adding to 42280022 its reverse (22008224), we get a palindrome (64288246).

The spelling of 42280022 in words is "forty-two million, two hundred eighty thousand, twenty-two".