42823158 has 48 divisors (see below), whose sum is σ = 100589040. Its totient is φ = 12117504.

The previous prime is 42823129. The next prime is 42823181. The reversal of 42823158 is 85132824.

It is a super-2 number, since 2×42823158² = 3667645722185928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32578 + ... + 33866.

It is an arithmetic number, because the mean of its divisors is an integer number (2095605).

Almost surely, 2^42823158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42823158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50294520).

42823158 is an abundant number, since it is smaller than the sum of its proper divisors (57765882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42823158 is a wasteful number, since it uses less digits than its factorization.

42823158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421 (or 1414 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 42823158 is about 6543.9405559647. The cubic root of 42823158 is about 349.8588764385.

The spelling of 42823158 in words is "forty-two million, eight hundred twenty-three thousand, one hundred fifty-eight".