42621134 has 8 divisors (see below), whose sum is σ = 63969528. Its totient is φ = 21297960.

The previous prime is 42621133. The next prime is 42621143. The reversal of 42621134 is 43112624.

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

It is a super-2 number, since 2×42621134² = 3633122126891912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42621133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277 + ... + 9320.

It is an arithmetic number, because the mean of its divisors is an integer number (7996191).

Almost surely, 2^42621134 is an apocalyptic number.

42621134 is a deficient number, since it is larger than the sum of its proper divisors (21348394).

42621134 is a wasteful number, since it uses less digits than its factorization.

42621134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12610.

The product of its digits is 1152, while the sum is 23.

The square root of 42621134 is about 6528.4863483046. The cubic root of 42621134 is about 349.3078402510.

Adding to 42621134 its reverse (43112624), we get a palindrome (85733758).

The spelling of 42621134 in words is "forty-two million, six hundred twenty-one thousand, one hundred thirty-four".