42001704 has 48 divisors (see below), whose sum is σ = 119745600. Its totient is φ = 13263264.

The previous prime is 42001667. The next prime is 42001709. The reversal of 42001704 is 40710024.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (42001709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13984 + ... + 16719.

It is an arithmetic number, because the mean of its divisors is an integer number (2494700).

Almost surely, 2^42001704 is an apocalyptic number.

It is an amenable number.

42001704 is an abundant number, since it is smaller than the sum of its proper divisors (77743896).

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

42001704 is a wasteful number, since it uses less digits than its factorization.

42001704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30734 (or 30727 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 42001704 is about 6480.8721635286. The cubic root of 42001704 is about 347.6073653373.

Adding to 42001704 its reverse (40710024), we get a palindrome (82711728).

The spelling of 42001704 in words is "forty-two million, one thousand, seven hundred four".