42174930 has 64 divisors (see below), whose sum is σ = 116317440. Its totient is φ = 9586944.

The previous prime is 42174907. The next prime is 42174941. The reversal of 42174930 is 3947124.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47652 + ... + 48528.

It is an arithmetic number, because the mean of its divisors is an integer number (1817460).

Almost surely, 2^42174930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42174930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58158720).

42174930 is an abundant number, since it is smaller than the sum of its proper divisors (74142510).

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

42174930 is a wasteful number, since it uses less digits than its factorization.

42174930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 42174930 is about 6494.2228172430. Note that the first 3 decimals coincide. The cubic root of 42174930 is about 348.0845844070.

The spelling of 42174930 in words is "forty-two million, one hundred seventy-four thousand, nine hundred thirty".