42351534 has 48 divisors (see below), whose sum is σ = 94060512. Its totient is φ = 13768704.

The previous prime is 42351521. The next prime is 42351553. The reversal of 42351534 is 43515324.

It is a junction number, because it is equal to n+sod(n) for n = 42351498 and 42351507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219342 + ... + 219534.

It is an arithmetic number, because the mean of its divisors is an integer number (1959594).

Almost surely, 2^42351534 is an apocalyptic number.

42351534 is an abundant number, since it is smaller than the sum of its proper divisors (51708978).

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

42351534 is a wasteful number, since it uses less digits than its factorization.

42351534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 438 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 42351534 is about 6507.8056209447. The cubic root of 42351534 is about 348.5697662000.

Adding to 42351534 its reverse (43515324), we get a palindrome (85866858).

The spelling of 42351534 in words is "forty-two million, three hundred fifty-one thousand, five hundred thirty-four".