42900479 has 4 divisors (see below), whose sum is σ = 43709976. Its totient is φ = 42090984.

The previous prime is 42900449. The next prime is 42900491. The reversal of 42900479 is 97400924.

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 42900479 - 2⁸ = 42900223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42900409) 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, 404669 + ... + 404774.

It is an arithmetic number, because the mean of its divisors is an integer number (10927494).

Almost surely, 2^42900479 is an apocalyptic number.

42900479 is a deficient number, since it is larger than the sum of its proper divisors (809497).

42900479 is an equidigital number, since it uses as much as digits as its factorization.

42900479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809496.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 42900479 is about 6549.8457233739. The cubic root of 42900479 is about 350.0693168833.

The spelling of 42900479 in words is "forty-two million, nine hundred thousand, four hundred seventy-nine".