42444534 has 16 divisors (see below), whose sum is σ = 92606400. Its totient is φ = 12861960.

The previous prime is 42444533. The next prime is 42444539. The reversal of 42444534 is 43544424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42444533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321484 + ... + 321615.

It is an arithmetic number, because the mean of its divisors is an integer number (5787900).

Almost surely, 2^42444534 is an apocalyptic number.

42444534 is an abundant number, since it is smaller than the sum of its proper divisors (50161866).

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

42444534 is a wasteful number, since it uses less digits than its factorization.

42444534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643115.

The product of its digits is 30720, while the sum is 30.

The square root of 42444534 is about 6514.9469683183. The cubic root of 42444534 is about 348.8247218523.

Adding to 42444534 its reverse (43544424), we get a palindrome (85988958).

It can be divided in two parts, 4244 and 4534, that added together give a palindrome (8778).

The spelling of 42444534 in words is "forty-two million, four hundred forty-four thousand, five hundred thirty-four".