42510140 has 24 divisors (see below), whose sum is σ = 89485872. Its totient is φ = 16963200.

The previous prime is 42510133. The next prime is 42510197. The reversal of 42510140 is 4101524.

It is a super-2 number, since 2×42510140² = 3614224005639200, which contains 22 as substring.

It is a congruent number.

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, 6815 + ... + 11465.

It is an arithmetic number, because the mean of its divisors is an integer number (3728578).

Almost surely, 2^42510140 is an apocalyptic number.

It is an amenable number.

42510140 is an abundant number, since it is smaller than the sum of its proper divisors (46975732).

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

42510140 is a wasteful number, since it uses less digits than its factorization.

42510140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5117 (or 5115 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 42510140 is about 6519.9800613192. The cubic root of 42510140 is about 349.0043540424.

Adding to 42510140 its reverse (4101524), we get a palindrome (46611664).

The spelling of 42510140 in words is "forty-two million, five hundred ten thousand, one hundred forty".