42235020 has 180 divisors, whose sum is σ = 141645504. Its totient is φ = 10523520.

The previous prime is 42235007. The next prime is 42235033. The reversal of 42235020 is 2053224.

It is an interprime number because it is at equal distance from previous prime (42235007) and next prime (42235033).

It is a tau number, because it is divible by the number of its divisors (180).

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 = 42234984 and 42235002.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1362405 + ... + 1362435.

Almost surely, 2^42235020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42235020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70822752).

42235020 is an abundant number, since it is smaller than the sum of its proper divisors (99410484).

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

42235020 is a wasteful number, since it uses less digits than its factorization.

42235020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 42235020 is about 6498.8475901501. The cubic root of 42235020 is about 348.2498206170.

Adding to 42235020 its reverse (2053224), we get a palindrome (44288244).

The spelling of 42235020 in words is "forty-two million, two hundred thirty-five thousand, twenty".