42042030 has 16 divisors (see below), whose sum is σ = 100900944. Its totient is φ = 11211200.

The previous prime is 42042023. The next prime is 42042053. The reversal of 42042030 is 3024024.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 700671 + ... + 700730.

It is an arithmetic number, because the mean of its divisors is an integer number (6306309).

Almost surely, 2^42042030 is an apocalyptic number.

42042030 is an abundant number, since it is smaller than the sum of its proper divisors (58858914).

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

42042030 is a wasteful number, since it uses less digits than its factorization.

42042030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401411.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 42042030 is about 6483.9825724627. The cubic root of 42042030 is about 347.7185761498.

Adding to 42042030 its reverse (3024024), we get a palindrome (45066054).

The spelling of 42042030 in words is "forty-two million, forty-two thousand, thirty", and thus it is an eban number.