42011902 has 8 divisors (see below), whose sum is σ = 63046800. Its totient is φ = 20996304.

The previous prime is 42011897. The next prime is 42011911. The reversal of 42011902 is 20911024.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42011902.

It is a congruent number.

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, 3474 + ... + 9802.

It is an arithmetic number, because the mean of its divisors is an integer number (7880850).

Almost surely, 2^42011902 is an apocalyptic number.

42011902 is a deficient number, since it is larger than the sum of its proper divisors (21034898).

42011902 is a wasteful number, since it uses less digits than its factorization.

42011902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9650.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 42011902 is about 6481.6588925984. The cubic root of 42011902 is about 347.6354960456.

Adding to 42011902 its reverse (20911024), we get a palindrome (62922926).

The spelling of 42011902 in words is "forty-two million, eleven thousand, nine hundred two".