42615234 has 40 divisors (see below), whose sum is σ = 95984460. Its totient is φ = 14131584.

The previous prime is 42615203. The next prime is 42615241. The reversal of 42615234 is 43251624.

42615234 is a `hidden beast` number, since 42 + 615 + 2 + 3 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 36036009 + 6579225 = 6003^2 + 2565^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 42615198 and 42615207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37182 + ... + 38310.

Almost surely, 2^42615234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42615234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47992230).

42615234 is an abundant number, since it is smaller than the sum of its proper divisors (53369226).

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

42615234 is a wasteful number, since it uses less digits than its factorization.

42615234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376 (or 1367 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 42615234 is about 6528.0344668208. The cubic root of 42615234 is about 349.2917213981.

Adding to 42615234 its reverse (43251624), we get a palindrome (85866858).

It can be divided in two parts, 42615 and 234, that added together give a square (42849 = 207²).

The spelling of 42615234 in words is "forty-two million, six hundred fifteen thousand, two hundred thirty-four".