42502740 has 48 divisors (see below), whose sum is σ = 136010112. Its totient is φ = 9714816.

The previous prime is 42502727. The next prime is 42502741. The reversal of 42502740 is 4720524.

It is a self number, because there is not a number n which added to its sum of digits gives 42502740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42502741) 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, 50179 + ... + 51018.

It is an arithmetic number, because the mean of its divisors is an integer number (2833544).

Almost surely, 2^42502740 is an apocalyptic number.

It is an amenable number.

42502740 is an abundant number, since it is smaller than the sum of its proper divisors (93507372).

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

42502740 is a wasteful number, since it uses less digits than its factorization.

42502740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101216 (or 101214 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 42502740 is about 6519.4125502226. The cubic root of 42502740 is about 348.9841017599.

The spelling of 42502740 in words is "forty-two million, five hundred two thousand, seven hundred forty".