42961420 has 12 divisors (see below), whose sum is σ = 90219024. Its totient is φ = 17184560.

The previous prime is 42961417. The next prime is 42961427. The reversal of 42961420 is 2416924.

It is not an unprimeable number, because it can be changed into a prime (42961427) 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 3 ways as a sum of consecutive naturals, for example, 1074016 + ... + 1074055.

It is an arithmetic number, because the mean of its divisors is an integer number (7518252).

Almost surely, 2^42961420 is an apocalyptic number.

It is an amenable number.

42961420 is an abundant number, since it is smaller than the sum of its proper divisors (47257604).

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

42961420 is a wasteful number, since it uses less digits than its factorization.

42961420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148080 (or 2148078 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 42961420 is about 6554.4961667545. The cubic root of 42961420 is about 350.2349986434.

The spelling of 42961420 in words is "forty-two million, nine hundred sixty-one thousand, four hundred twenty".