42623015 has 4 divisors (see below), whose sum is σ = 51147624. Its totient is φ = 34098408.

The previous prime is 42622999. The next prime is 42623027. The reversal of 42623015 is 51032624.

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 42623015 - 2⁴ = 42622999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4262297 + ... + 4262306.

It is an arithmetic number, because the mean of its divisors is an integer number (12786906).

Almost surely, 2^42623015 is an apocalyptic number.

42623015 is a deficient number, since it is larger than the sum of its proper divisors (8524609).

42623015 is an equidigital number, since it uses as much as digits as its factorization.

42623015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8524608.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 42623015 is about 6528.6304076736. The cubic root of 42623015 is about 349.3129788471.

Adding to 42623015 its reverse (51032624), we get a palindrome (93655639).

The spelling of 42623015 in words is "forty-two million, six hundred twenty-three thousand, fifteen".