42351330 has 32 divisors (see below), whose sum is σ = 116164224. Its totient is φ = 9680256.

The previous prime is 42351311. The next prime is 42351343. The reversal of 42351330 is 3315324.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 42351297 and 42351306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100627 + ... + 101046.

It is an arithmetic number, because the mean of its divisors is an integer number (3630132).

Almost surely, 2^42351330 is an apocalyptic number.

42351330 is an abundant number, since it is smaller than the sum of its proper divisors (73812894).

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

42351330 is a wasteful number, since it uses less digits than its factorization.

42351330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201690.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 42351330 is about 6507.7899474399. The cubic root of 42351330 is about 348.5692065323.

Adding to 42351330 its reverse (3315324), we get a palindrome (45666654).

It can be divided in two parts, 4235 and 1330, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 42351330 in words is "forty-two million, three hundred fifty-one thousand, three hundred thirty".