42854390 has 32 divisors (see below), whose sum is σ = 78732000. Its totient is φ = 16791808.

The previous prime is 42854381. The next prime is 42854411. The reversal of 42854390 is 9345824.

It is a self number, because there is not a number n which added to its sum of digits gives 42854390.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159176 + ... + 159444.

It is an arithmetic number, because the mean of its divisors is an integer number (2460375).

Almost surely, 2^42854390 is an apocalyptic number.

42854390 is a deficient number, since it is larger than the sum of its proper divisors (35877610).

42854390 is a wasteful number, since it uses less digits than its factorization.

42854390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 42854390 is about 6546.3264507661. The cubic root of 42854390 is about 349.9439093788.

The spelling of 42854390 in words is "forty-two million, eight hundred fifty-four thousand, three hundred ninety".