42403415 has 4 divisors (see below), whose sum is σ = 50884104. Its totient is φ = 33922728.

The previous prime is 42403409. The next prime is 42403433. The reversal of 42403415 is 51430424.

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 42403415 - 2⁴ = 42403399 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, 4240337 + ... + 4240346.

It is an arithmetic number, because the mean of its divisors is an integer number (12721026).

Almost surely, 2^42403415 is an apocalyptic number.

42403415 is a deficient number, since it is larger than the sum of its proper divisors (8480689).

42403415 is an equidigital number, since it uses as much as digits as its factorization.

42403415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8480688.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 42403415 is about 6511.7904603880. The cubic root of 42403415 is about 348.7120417914.

Adding to 42403415 its reverse (51430424), we get a palindrome (93833839).

The spelling of 42403415 in words is "forty-two million, four hundred three thousand, four hundred fifteen".