42830370 has 240 divisors, whose sum is σ = 139043520. Its totient is φ = 9408960.

The previous prime is 42830329. The next prime is 42830371. The reversal of 42830370 is 7303824.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42830371) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1862179 + ... + 1862201.

It is an arithmetic number, because the mean of its divisors is an integer number (579348).

Almost surely, 2^42830370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42830370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69521760).

42830370 is an abundant number, since it is smaller than the sum of its proper divisors (96213150).

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

42830370 is a wasteful number, since it uses less digits than its factorization.

42830370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 42830370 is about 6544.4915768912. The cubic root of 42830370 is about 349.8785156610.

The spelling of 42830370 in words is "forty-two million, eight hundred thirty thousand, three hundred seventy".