42953911 has 48 divisors (see below), whose sum is σ = 60060672. Its totient is φ = 29874240.

The previous prime is 42953909. The next prime is 42953993. The reversal of 42953911 is 11935924.

It is not a de Polignac number, because 42953911 - 2¹ = 42953909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42953111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 517476 + ... + 517558.

It is an arithmetic number, because the mean of its divisors is an integer number (1251264).

Almost surely, 2^42953911 is an apocalyptic number.

42953911 is a deficient number, since it is larger than the sum of its proper divisors (17106761).

42953911 is a wasteful number, since it uses less digits than its factorization.

42953911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 161 counting only the distinct ones).

The product of its digits is 9720, while the sum is 34.

The square root of 42953911 is about 6553.9233288161. The cubic root of 42953911 is about 350.2145922117.

The spelling of 42953911 in words is "forty-two million, nine hundred fifty-three thousand, nine hundred eleven".