42091353 has 8 divisors (see below), whose sum is σ = 62357600. Its totient is φ = 28060884.

The previous prime is 42091349. The next prime is 42091363. The reversal of 42091353 is 35319024.

It is not a de Polignac number, because 42091353 - 2² = 42091349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1558939 = 42091353 / (4 + 2 + 0 + 9 + 1 + 3 + 5 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42091333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779443 + ... + 779496.

It is an arithmetic number, because the mean of its divisors is an integer number (7794700).

Almost surely, 2^42091353 is an apocalyptic number.

It is an amenable number.

42091353 is a deficient number, since it is larger than the sum of its proper divisors (20266247).

42091353 is a wasteful number, since it uses less digits than its factorization.

42091353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558948 (or 1558942 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 42091353 is about 6487.7849070388. The cubic root of 42091353 is about 347.8545021965.

The spelling of 42091353 in words is "forty-two million, ninety-one thousand, three hundred fifty-three".