42070432 has 12 divisors (see below), whose sum is σ = 82826226. Its totient is φ = 21035200.

The previous prime is 42070429. The next prime is 42070447. The reversal of 42070432 is 23407024.

It can be written as a sum of positive squares in only one way, i.e., 39891856 + 2178576 = 6316^2 + 1476^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657319 + ... + 657382.

Almost surely, 2^42070432 is an apocalyptic number.

It is an amenable number.

42070432 is a deficient number, since it is larger than the sum of its proper divisors (40755794).

42070432 is a wasteful number, since it uses less digits than its factorization.

42070432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314711 (or 1314703 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 42070432 is about 6486.1723689708. The cubic root of 42070432 is about 347.7968603486.

Adding to 42070432 its reverse (23407024), we get a palindrome (65477456).

The spelling of 42070432 in words is "forty-two million, seventy thousand, four hundred thirty-two".