42823156 has 6 divisors (see below), whose sum is σ = 74940530. Its totient is φ = 21411576.

The previous prime is 42823129. The next prime is 42823181. The reversal of 42823156 is 65132824.

It can be written as a sum of positive squares in only one way, i.e., 37015056 + 5808100 = 6084^2 + 2410^2 .

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, 5352891 + ... + 5352898.

Almost surely, 2^42823156 is an apocalyptic number.

It is an amenable number.

42823156 is a deficient number, since it is larger than the sum of its proper divisors (32117374).

42823156 is a wasteful number, since it uses less digits than its factorization.

42823156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10705793 (or 10705791 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 42823156 is about 6543.9404031516. The cubic root of 42823156 is about 349.8588709920.

The spelling of 42823156 in words is "forty-two million, eight hundred twenty-three thousand, one hundred fifty-six".