42072682 has 4 divisors (see below), whose sum is σ = 63109026. Its totient is φ = 21036340.

The previous prime is 42072629. The next prime is 42072691. The reversal of 42072682 is 28627024.

42072682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 40462321 + 1610361 = 6361^2 + 1269^2 .

It is a super-2 number, since 2×42072682² = 3540221141346248, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10518169 + ... + 10518172.

Almost surely, 2^42072682 is an apocalyptic number.

42072682 is a deficient number, since it is larger than the sum of its proper divisors (21036344).

42072682 is a wasteful number, since it uses less digits than its factorization.

42072682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21036343.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 42072682 is about 6486.3458125512. The cubic root of 42072682 is about 347.8030604988.

It can be divided in two parts, 4207 and 2682, that added together give a square (6889 = 83²).

The spelling of 42072682 in words is "forty-two million, seventy-two thousand, six hundred eighty-two".