42509496 has 32 divisors (see below), whose sum is σ = 106732800. Its totient is φ = 14108640.

The previous prime is 42509491. The next prime is 42509501. The reversal of 42509496 is 69490524.

It is an interprime number because it is at equal distance from previous prime (42509491) and next prime (42509501).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42509491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2031 + ... + 9441.

It is an arithmetic number, because the mean of its divisors is an integer number (3335400).

Almost surely, 2^42509496 is an apocalyptic number.

It is an amenable number.

42509496 is an abundant number, since it is smaller than the sum of its proper divisors (64223304).

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

42509496 is a wasteful number, since it uses less digits than its factorization.

42509496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7659 (or 7655 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 42509496 is about 6519.9306744781. The cubic root of 42509496 is about 349.0025916398.

The spelling of 42509496 in words is "forty-two million, five hundred nine thousand, four hundred ninety-six".