42004410 has 64 divisors (see below), whose sum is σ = 116121600. Its totient is φ = 9525312.

The previous prime is 42004409. The next prime is 42004423. The reversal of 42004410 is 1440024.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 42004410.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28471 + ... + 29909.

It is an arithmetic number, because the mean of its divisors is an integer number (1814400).

Almost surely, 2^42004410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42004410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58060800).

42004410 is an abundant number, since it is smaller than the sum of its proper divisors (74117190).

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

42004410 is a wasteful number, since it uses less digits than its factorization.

42004410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 42004410 is about 6481.0809283637. The cubic root of 42004410 is about 347.6148301561.

Adding to 42004410 its reverse (1440024), we get a palindrome (43444434).

The spelling of 42004410 in words is "forty-two million, four thousand, four hundred ten".