42615403 has 4 divisors (see below), whose sum is σ = 43006480. Its totient is φ = 42224328.

The previous prime is 42615401. The next prime is 42615431. The reversal of 42615403 is 30451624.

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 42615403 - 2¹ = 42615401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42615401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195375 + ... + 195592.

It is an arithmetic number, because the mean of its divisors is an integer number (10751620).

Almost surely, 2^42615403 is an apocalyptic number.

42615403 is a deficient number, since it is larger than the sum of its proper divisors (391077).

42615403 is a wasteful number, since it uses less digits than its factorization.

42615403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391076.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 42615403 is about 6528.0474109798. The cubic root of 42615403 is about 349.2921831283.

The spelling of 42615403 in words is "forty-two million, six hundred fifteen thousand, four hundred three".