42788854 has 4 divisors (see below), whose sum is σ = 64183284. Its totient is φ = 21394426.

The previous prime is 42788843. The next prime is 42788857. The reversal of 42788854 is 45888724.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42788857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10697212 + ... + 10697215.

It is an arithmetic number, because the mean of its divisors is an integer number (16045821).

Almost surely, 2^42788854 is an apocalyptic number.

42788854 is a deficient number, since it is larger than the sum of its proper divisors (21394430).

42788854 is a wasteful number, since it uses less digits than its factorization.

42788854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21394429.

The product of its digits is 573440, while the sum is 46.

The square root of 42788854 is about 6541.3189801446. The cubic root of 42788854 is about 349.7654319446.

The spelling of 42788854 in words is "forty-two million, seven hundred eighty-eight thousand, eight hundred fifty-four".