42791955 has 8 divisors (see below), whose sum is σ = 68467152. Its totient is φ = 22822368.

The previous prime is 42791939. The next prime is 42791963. The reversal of 42791955 is 55919724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42791955 - 2⁴ = 42791939 is a prime.

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, 1426384 + ... + 1426413.

It is an arithmetic number, because the mean of its divisors is an integer number (8558394).

Almost surely, 2^42791955 is an apocalyptic number.

42791955 is a deficient number, since it is larger than the sum of its proper divisors (25675197).

42791955 is a wasteful number, since it uses less digits than its factorization.

42791955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852805.

The product of its digits is 113400, while the sum is 42.

The square root of 42791955 is about 6541.5560075566. The cubic root of 42791955 is about 349.7738811574.

The spelling of 42791955 in words is "forty-two million, seven hundred ninety-one thousand, nine hundred fifty-five".