42070424 has 32 divisors (see below), whose sum is σ = 86538240. Its totient is φ = 19015200.

The previous prime is 42070421. The next prime is 42070429. The reversal of 42070424 is 42407024.

It is a self number, because there is not a number n which added to its sum of digits gives 42070424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42070421) by changing a digit.

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, 15557 + ... + 18059.

It is an arithmetic number, because the mean of its divisors is an integer number (2704320).

Almost surely, 2^42070424 is an apocalyptic number.

42070424 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42070424 is an abundant number, since it is smaller than the sum of its proper divisors (44467816).

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

42070424 is a wasteful number, since it uses less digits than its factorization.

42070424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711 (or 2707 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 42070424 is about 6486.1717522742. The cubic root of 42070424 is about 347.7968383032.

Adding to 42070424 its reverse (42407024), we get a palindrome (84477448).

The spelling of 42070424 in words is "forty-two million, seventy thousand, four hundred twenty-four".