42909960 has 32 divisors (see below), whose sum is σ = 128730240. Its totient is φ = 11442624.

The previous prime is 42909959. The next prime is 42909991. The reversal of 42909960 is 6990924.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178672 + ... + 178911.

It is an arithmetic number, because the mean of its divisors is an integer number (4022820).

Almost surely, 2^42909960 is an apocalyptic number.

42909960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42909960 is an abundant number, since it is smaller than the sum of its proper divisors (85820280).

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

42909960 is a wasteful number, since it uses less digits than its factorization.

42909960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357597 (or 357593 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 42909960 is about 6550.5694408960. The cubic root of 42909960 is about 350.0951034075.

The spelling of 42909960 in words is "forty-two million, nine hundred nine thousand, nine hundred sixty".