42784554 has 32 divisors (see below), whose sum is σ = 89631360. Its totient is φ = 13589312.

The previous prime is 42784517. The next prime is 42784579. The reversal of 42784554 is 45548724.

42784554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

42784554 is a modest number, since divided by 4554 gives 4278 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53284 + ... + 54080.

It is an arithmetic number, because the mean of its divisors is an integer number (2800980).

Almost surely, 2^42784554 is an apocalyptic number.

42784554 is an abundant number, since it is smaller than the sum of its proper divisors (46846806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42784554 is a wasteful number, since it uses less digits than its factorization.

42784554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214.

The product of its digits is 179200, while the sum is 39.

The square root of 42784554 is about 6540.9902919971. The cubic root of 42784554 is about 349.7537151725.

The spelling of 42784554 in words is "forty-two million, seven hundred eighty-four thousand, five hundred fifty-four".