45242530 has 8 divisors (see below), whose sum is σ = 81436572. Its totient is φ = 18097008.

The previous prime is 45242507. The next prime is 45242531. The reversal of 45242530 is 3524254.

It can be written as a sum of positive squares in 2 ways, for example, as 42627841 + 2614689 = 6529^2 + 1617^2 .

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 = 45242495 and 45242504.

It is not an unprimeable number, because it can be changed into a prime (45242531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2262117 + ... + 2262136.

Almost surely, 2^45242530 is an apocalyptic number.

45242530 is a deficient number, since it is larger than the sum of its proper divisors (36194042).

45242530 is a wasteful number, since it uses less digits than its factorization.

45242530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4524260.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 45242530 is about 6726.2567598925. The cubic root of 45242530 is about 356.3271883632.

Adding to 45242530 its reverse (3524254), we get a palindrome (48766784).

It can be divided in two parts, 4524 and 2530, that multiplied together give a triangular number (11445720 = T₄₇₈₄).

The spelling of 45242530 in words is "forty-five million, two hundred forty-two thousand, five hundred thirty".