42080004 has 36 divisors (see below), whose sum is σ = 107658096. Its totient is φ = 13856688.

The previous prime is 42079987. The next prime is 42080011. The reversal of 42080004 is 40008024.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4054 + ... + 10029.

Almost surely, 2^42080004 is an apocalyptic number.

It is an amenable number.

42080004 is an abundant number, since it is smaller than the sum of its proper divisors (65578092).

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

42080004 is a wasteful number, since it uses less digits than its factorization.

42080004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14176 (or 14171 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 42080004 is about 6486.9102044039. The cubic root of 42080004 is about 347.8232356351.

Adding to 42080004 its reverse (40008024), we get a palindrome (82088028).

The spelling of 42080004 in words is "forty-two million, eighty thousand, four".