42032420 has 12 divisors (see below), whose sum is σ = 88268124. Its totient is φ = 16812960.

The previous prime is 42032411. The next prime is 42032437. The reversal of 42032420 is 2423024.

It can be written as a sum of positive squares in 2 ways, for example, as 22033636 + 19998784 = 4694^2 + 4472^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050791 + ... + 1050830.

It is an arithmetic number, because the mean of its divisors is an integer number (7355677).

Almost surely, 2^42032420 is an apocalyptic number.

It is an amenable number.

42032420 is an abundant number, since it is smaller than the sum of its proper divisors (46235704).

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

42032420 is a wasteful number, since it uses less digits than its factorization.

42032420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101630 (or 2101628 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 42032420 is about 6483.2414732138. The cubic root of 42032420 is about 347.6920802031.

Adding to 42032420 its reverse (2423024), we get a palindrome (44455444).

The spelling of 42032420 in words is "forty-two million, thirty-two thousand, four hundred twenty".