42507234 has 64 divisors (see below), whose sum is σ = 117780480. Its totient is φ = 11039760.

The previous prime is 42507233. The next prime is 42507239. The reversal of 42507234 is 43270524.

42507234 is a `hidden beast` number, since 425 + 0 + 7 + 234 = 666.

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 = 42507198 and 42507207.

It is not an unprimeable number, because it can be changed into a prime (42507233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 954 + ... + 9269.

It is an arithmetic number, because the mean of its divisors is an integer number (1840320).

Almost surely, 2^42507234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42507234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58890240).

42507234 is an abundant number, since it is smaller than the sum of its proper divisors (75273246).

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

42507234 is a wasteful number, since it uses less digits than its factorization.

42507234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10252 (or 10246 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 42507234 is about 6519.7572040683. The cubic root of 42507234 is about 348.9964011966.

Adding to 42507234 its reverse (43270524), we get a palindrome (85777758).

The spelling of 42507234 in words is "forty-two million, five hundred seven thousand, two hundred thirty-four".