42771044 has 6 divisors (see below), whose sum is σ = 74849334. Its totient is φ = 21385520.

The previous prime is 42771023. The next prime is 42771067. The reversal of 42771044 is 44017724.

It can be written as a sum of positive squares in only one way, i.e., 42745444 + 25600 = 6538^2 + 160^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42770998 and 42771016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5346377 + ... + 5346384.

It is an arithmetic number, because the mean of its divisors is an integer number (12474889).

Almost surely, 2^42771044 is an apocalyptic number.

It is an amenable number.

42771044 is a deficient number, since it is larger than the sum of its proper divisors (32078290).

42771044 is a wasteful number, since it uses less digits than its factorization.

42771044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10692765 (or 10692763 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 42771044 is about 6539.9574922166. The cubic root of 42771044 is about 349.7168976010.

Adding to 42771044 its reverse (44017724), we get a palindrome (86788768).

The spelling of 42771044 in words is "forty-two million, seven hundred seventy-one thousand, forty-four".