42850020 has 48 divisors (see below), whose sum is σ = 120331008. Its totient is φ = 11393280.

The previous prime is 42850019. The next prime is 42850021. The reversal of 42850020 is 2005824.

It is an interprime number because it is at equal distance from previous prime (42850019) and next prime (42850021).

It is a super-2 number, since 2×42850020² = 3672248428000800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42850021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25032 + ... + 26688.

It is an arithmetic number, because the mean of its divisors is an integer number (2506896).

Almost surely, 2^42850020 is an apocalyptic number.

It is an amenable number.

42850020 is an abundant number, since it is smaller than the sum of its proper divisors (77480988).

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

42850020 is a wasteful number, since it uses less digits than its factorization.

42850020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100 (or 2098 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 42850020 is about 6545.9926672736. The cubic root of 42850020 is about 349.9320140058.

Adding to 42850020 its reverse (2005824), we get a palindrome (44855844).

The spelling of 42850020 in words is "forty-two million, eight hundred fifty thousand, twenty".