42072332 has 24 divisors (see below), whose sum is σ = 77629440. Its totient is φ = 19921680.

The previous prime is 42072311. The next prime is 42072341. The reversal of 42072332 is 23327024.

It is a super-2 number, since 2×42072332² = 3540162239836448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42072298 and 42072307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2219 + ... + 9437.

It is an arithmetic number, because the mean of its divisors is an integer number (3234560).

Almost surely, 2^42072332 is an apocalyptic number.

It is an amenable number.

42072332 is a deficient number, since it is larger than the sum of its proper divisors (35557108).

42072332 is a wasteful number, since it uses less digits than its factorization.

42072332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7301 (or 7299 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 42072332 is about 6486.3188327433. The cubic root of 42072332 is about 347.8020960455.

Adding to 42072332 its reverse (23327024), we get a palindrome (65399356).

The spelling of 42072332 in words is "forty-two million, seventy-two thousand, three hundred thirty-two".