42366813 has 16 divisors (see below), whose sum is σ = 58295040. Its totient is φ = 27349056.

The previous prime is 42366799. The next prime is 42366829. The reversal of 42366813 is 31866324.

It is not a de Polignac number, because 42366813 - 2⁶ = 42366749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42366893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25731 + ... + 27327.

It is an arithmetic number, because the mean of its divisors is an integer number (3643440).

Almost surely, 2^42366813 is an apocalyptic number.

It is an amenable number.

42366813 is a deficient number, since it is larger than the sum of its proper divisors (15928227).

42366813 is a wasteful number, since it uses less digits than its factorization.

42366813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876.

The product of its digits is 20736, while the sum is 33.

The square root of 42366813 is about 6508.9794130877. The cubic root of 42366813 is about 348.6116785514.

The spelling of 42366813 in words is "forty-two million, three hundred sixty-six thousand, eight hundred thirteen".