42782507 has 4 divisors (see below), whose sum is σ = 44642640. Its totient is φ = 40922376.

The previous prime is 42782491. The next prime is 42782513. The reversal of 42782507 is 70528724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42782507 - 2⁴ = 42782491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42782527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930032 + ... + 930077.

It is an arithmetic number, because the mean of its divisors is an integer number (11160660).

Almost surely, 2^42782507 is an apocalyptic number.

42782507 is a deficient number, since it is larger than the sum of its proper divisors (1860133).

42782507 is a wasteful number, since it uses less digits than its factorization.

42782507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860132.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 42782507 is about 6540.8338153480. The cubic root of 42782507 is about 349.7481371683.

The spelling of 42782507 in words is "forty-two million, seven hundred eighty-two thousand, five hundred seven".