42021410 has 8 divisors (see below), whose sum is σ = 75638556. Its totient is φ = 16808560.

The previous prime is 42021401. The next prime is 42021509. The reversal of 42021410 is 1412024.

It can be written as a sum of positive squares in 2 ways, for example, as 33721249 + 8300161 = 5807^2 + 2881^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2101061 + ... + 2101080.

Almost surely, 2^42021410 is an apocalyptic number.

42021410 is a deficient number, since it is larger than the sum of its proper divisors (33617146).

42021410 is a wasteful number, since it uses less digits than its factorization.

42021410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202148.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 42021410 is about 6482.3923053145. The cubic root of 42021410 is about 347.6617193206.

Adding to 42021410 its reverse (1412024), we get a palindrome (43433434).

The spelling of 42021410 in words is "forty-two million, twenty-one thousand, four hundred ten".