42722512 has 30 divisors (see below), whose sum is σ = 96290898. Its totient is φ = 18309312.

The previous prime is 42722503. The next prime is 42722527. The reversal of 42722512 is 21522724.

It can be written as a sum of positive squares in only one way, i.e., 31990336 + 10732176 = 5656^2 + 3276^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26463 + ... + 28030.

Almost surely, 2^42722512 is an apocalyptic number.

It is an amenable number.

42722512 is an abundant number, since it is smaller than the sum of its proper divisors (53568386).

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

42722512 is a wasteful number, since it uses less digits than its factorization.

42722512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54515 (or 54502 counting only the distinct ones).

The product of its digits is 2240, while the sum is 25.

The square root of 42722512 is about 6536.2460174017. The cubic root of 42722512 is about 349.5845737791.

It can be divided in two parts, 42722 and 512, that added together give a palindrome (43234).

The spelling of 42722512 in words is "forty-two million, seven hundred twenty-two thousand, five hundred twelve".