42773864 has 48 divisors (see below), whose sum is σ = 98222400. Its totient is φ = 17363808.

The previous prime is 42773849. The next prime is 42773873. The reversal of 42773864 is 46837724.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4577 + ... + 10319.

It is an arithmetic number, because the mean of its divisors is an integer number (2046300).

Almost surely, 2^42773864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42773864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49111200).

42773864 is an abundant number, since it is smaller than the sum of its proper divisors (55448536).

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

42773864 is a wasteful number, since it uses less digits than its factorization.

42773864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5782 (or 5771 counting only the distinct ones).

The product of its digits is 225792, while the sum is 41.

The square root of 42773864 is about 6540.1730863946. The cubic root of 42773864 is about 349.7245833302.

The spelling of 42773864 in words is "forty-two million, seven hundred seventy-three thousand, eight hundred sixty-four".