42404000 has 48 divisors (see below), whose sum is σ = 104196456. Its totient is φ = 16960000.

The previous prime is 42403981. The next prime is 42404017. The reversal of 42404000 is 40424.

It can be written as a sum of positive squares in 4 ways, for example, as 20539024 + 21864976 = 4532^2 + 4676^2 .

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, 1301 + ... + 9300.

Almost surely, 2^42404000 is an apocalyptic number.

42404000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42404000 is an abundant number, since it is smaller than the sum of its proper divisors (61792456).

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

42404000 is a wasteful number, since it uses less digits than its factorization.

42404000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10626 (or 10608 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 42404000 is about 6511.8353787546. The cubic root of 42404000 is about 348.7136454013.

Adding to 42404000 its reverse (40424), we get a palindrome (42444424).

The spelling of 42404000 in words is "forty-two million, four hundred four thousand".