42502930 has 8 divisors (see below), whose sum is σ = 76505292. Its totient is φ = 17001168.

The previous prime is 42502913. The next prime is 42502931. The reversal of 42502930 is 3920524.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39803481 + 2699449 = 6309^2 + 1643^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 42502895 and 42502904.

It is not an unprimeable number, because it can be changed into a prime (42502931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2125137 + ... + 2125156.

Almost surely, 2^42502930 is an apocalyptic number.

42502930 is a deficient number, since it is larger than the sum of its proper divisors (34002362).

42502930 is a wasteful number, since it uses less digits than its factorization.

42502930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250300.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 42502930 is about 6519.4271220714. The cubic root of 42502930 is about 348.9846217803.

The spelling of 42502930 in words is "forty-two million, five hundred two thousand, nine hundred thirty".