42409104 has 40 divisors (see below), whose sum is σ = 112522560. Its totient is φ = 13753728.

The previous prime is 42409097. The next prime is 42409109. The reversal of 42409104 is 40190424.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (42409109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10164 + ... + 13715.

It is an arithmetic number, because the mean of its divisors is an integer number (2813064).

Almost surely, 2^42409104 is an apocalyptic number.

It is an amenable number.

42409104 is an abundant number, since it is smaller than the sum of its proper divisors (70113456).

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

42409104 is a wasteful number, since it uses less digits than its factorization.

42409104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23927 (or 23921 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 42409104 is about 6512.2272687614. The cubic root of 42409104 is about 348.7276359292.

Adding to 42409104 its reverse (40190424), we get a palindrome (82599528).

The spelling of 42409104 in words is "forty-two million, four hundred nine thousand, one hundred four".