42046020 has 48 divisors (see below), whose sum is σ = 130811520. Its totient is φ = 11212128.

The previous prime is 42046007. The next prime is 42046087. The reversal of 42046020 is 2064024.

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

It is a junction number, because it is equal to n+sod(n) for n = 42045984 and 42046002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38392 + ... + 39471.

It is an arithmetic number, because the mean of its divisors is an integer number (2725240).

Almost surely, 2^42046020 is an apocalyptic number.

It is an amenable number.

42046020 is an abundant number, since it is smaller than the sum of its proper divisors (88765500).

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

42046020 is a wasteful number, since it uses less digits than its factorization.

42046020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77881 (or 77873 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 42046020 is about 6484.2902464341. The cubic root of 42046020 is about 347.7295758821.

The spelling of 42046020 in words is "forty-two million, forty-six thousand, twenty".