42615423 has 16 divisors (see below), whose sum is σ = 66457600. Its totient is φ = 26914680.

The previous prime is 42615401. The next prime is 42615431. The reversal of 42615423 is 32451624.

42615423 is a `hidden beast` number, since 4 + 2 + 615 + 42 + 3 = 666.

42615423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42615423 - 2²⁴ = 25838207 is a prime.

It is a super-3 number, since 3×42615423³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42615493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41023 + ... + 42048.

It is an arithmetic number, because the mean of its divisors is an integer number (4153600).

Almost surely, 2^42615423 is an apocalyptic number.

42615423 is a deficient number, since it is larger than the sum of its proper divisors (23842177).

42615423 is a wasteful number, since it uses less digits than its factorization.

42615423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83099 (or 83093 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 42615423 is about 6528.0489428312. The cubic root of 42615423 is about 349.2922377709.

The spelling of 42615423 in words is "forty-two million, six hundred fifteen thousand, four hundred twenty-three".