42810890 has 32 divisors (see below), whose sum is σ = 79764480. Its totient is φ = 16533504.

The previous prime is 42810881. The next prime is 42810919. The reversal of 42810890 is 9801824.

It is a happy number.

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, 36554 + ... + 37706.

It is an arithmetic number, because the mean of its divisors is an integer number (2492640).

Almost surely, 2^42810890 is an apocalyptic number.

42810890 is a deficient number, since it is larger than the sum of its proper divisors (36953590).

42810890 is a wasteful number, since it uses less digits than its factorization.

42810890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 42810890 is about 6543.0031331186. The cubic root of 42810890 is about 349.8254639983.

The spelling of 42810890 in words is "forty-two million, eight hundred ten thousand, eight hundred ninety".