42750342 has 120 divisors (see below), whose sum is σ = 109535976. Its totient is φ = 12410496.

The previous prime is 42750329. The next prime is 42750343. The reversal of 42750342 is 24305724.

It is a super-2 number, since 2×42750342² = 3655183482233928, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42750343) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 994173 + ... + 994215.

Almost surely, 2^42750342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42750342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54767988).

42750342 is an abundant number, since it is smaller than the sum of its proper divisors (66785634).

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

42750342 is a wasteful number, since it uses less digits than its factorization.

42750342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 84 counting only the distinct ones).

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

The square root of 42750342 is about 6538.3745686524. The cubic root of 42750342 is about 349.6604652820.

The spelling of 42750342 in words is "forty-two million, seven hundred fifty thousand, three hundred forty-two".