42789455 has 16 divisors (see below), whose sum is σ = 53913600. Its totient is φ = 32558880.

The previous prime is 42789443. The next prime is 42789469. The reversal of 42789455 is 55498724.

It is a happy number.

It is not a de Polignac number, because 42789455 - 2²⁰ = 41740879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6806 + ... + 11484.

It is an arithmetic number, because the mean of its divisors is an integer number (3369600).

Almost surely, 2^42789455 is an apocalyptic number.

42789455 is a deficient number, since it is larger than the sum of its proper divisors (11124145).

42789455 is a wasteful number, since it uses less digits than its factorization.

42789455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4774.

The product of its digits is 403200, while the sum is 44.

The square root of 42789455 is about 6541.3649187306. The cubic root of 42789455 is about 349.7670695053.

The spelling of 42789455 in words is "forty-two million, seven hundred eighty-nine thousand, four hundred fifty-five".