42811322 has 4 divisors (see below), whose sum is σ = 64216986. Its totient is φ = 21405660.

The previous prime is 42811277. The next prime is 42811393. The reversal of 42811322 is 22311824.

It is a happy number.

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., 26739241 + 16072081 = 5171^2 + 4009^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10702829 + ... + 10702832.

Almost surely, 2^42811322 is an apocalyptic number.

42811322 is a deficient number, since it is larger than the sum of its proper divisors (21405664).

42811322 is a wasteful number, since it uses less digits than its factorization.

42811322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21405663.

The product of its digits is 768, while the sum is 23.

The square root of 42811322 is about 6543.0361453992. The cubic root of 42811322 is about 349.8266406778.

The spelling of 42811322 in words is "forty-two million, eight hundred eleven thousand, three hundred twenty-two".