42116404 has 24 divisors (see below), whose sum is σ = 83901888. Its totient is φ = 18311040.

The previous prime is 42116387. The next prime is 42116411. The reversal of 42116404 is 40461124.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 19797 + ... + 21820.

It is an arithmetic number, because the mean of its divisors is an integer number (3495912).

Almost surely, 2^42116404 is an apocalyptic number.

42116404 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42116404 is a deficient number, since it is larger than the sum of its proper divisors (41785484).

42116404 is a wasteful number, since it uses less digits than its factorization.

42116404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41655 (or 41653 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 42116404 is about 6489.7152479905. The cubic root of 42116404 is about 347.9234979587.

Adding to 42116404 its reverse (40461124), we get a palindrome (82577528).

The spelling of 42116404 in words is "forty-two million, one hundred sixteen thousand, four hundred four".