42279507 has 6 divisors (see below), whose sum is σ = 61070412. Its totient is φ = 28186332.

The previous prime is 42279469. The next prime is 42279529. The reversal of 42279507 is 70597224.

It is not a de Polignac number, because 42279507 - 2¹² = 42275411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42279407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2348853 + ... + 2348870.

It is an arithmetic number, because the mean of its divisors is an integer number (10178402).

Almost surely, 2^42279507 is an apocalyptic number.

42279507 is a deficient number, since it is larger than the sum of its proper divisors (18790905).

42279507 is a wasteful number, since it uses less digits than its factorization.

42279507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4697729 (or 4697726 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 42279507 is about 6502.2693730728. The cubic root of 42279507 is about 348.3720505690.

The spelling of 42279507 in words is "forty-two million, two hundred seventy-nine thousand, five hundred seven".