4015423 has 4 divisors (see below), whose sum is σ = 4019440. Its totient is φ = 4011408.

The previous prime is 4015421. The next prime is 4015463. The reversal of 4015423 is 3245104.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4015423 - 2¹ = 4015421 is a prime.

It is a super-2 number, since 2×4015423² = 32247243737858, which contains 22 as substring.

It is a Duffinian number.

4015423 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4015423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4015421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 811 + ... + 2947.

It is an arithmetic number, because the mean of its divisors is an integer number (1004860).

Almost surely, 2^4015423 is an apocalyptic number.

4015423 is a deficient number, since it is larger than the sum of its proper divisors (4017).

4015423 is a wasteful number, since it uses less digits than its factorization.

4015423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4016.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 4015423 is about 2003.8520404461. The cubic root of 4015423 is about 158.9438642596.

The spelling of 4015423 in words is "four million, fifteen thousand, four hundred twenty-three".