42906330 has 24 divisors (see below), whose sum is σ = 111556692. Its totient is φ = 11441664.

The previous prime is 42906329. The next prime is 42906349. The reversal of 42906330 is 3360924.

42906330 is a `hidden beast` number, since 4 + 29 + 0 + 633 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 42810849 + 95481 = 6543^2 + 309^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42906294 and 42906303.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238279 + ... + 238458.

Almost surely, 2^42906330 is an apocalyptic number.

42906330 is an abundant number, since it is smaller than the sum of its proper divisors (68650362).

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

42906330 is a wasteful number, since it uses less digits than its factorization.

42906330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476750 (or 476747 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 42906330 is about 6550.2923598875. The cubic root of 42906330 is about 350.0852309438.

The spelling of 42906330 in words is "forty-two million, nine hundred six thousand, three hundred thirty".