4528372949 has 4 divisors (see below), whose sum is σ = 4530095436. Its totient is φ = 4526650464.

The previous prime is 4528372931. The next prime is 4528373021. The reversal of 4528372949 is 9492738254.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2661528100 + 1866844849 = 51590^2 + 43207^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4528372949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4528372949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4528302949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857294 + ... + 862559.

It is an arithmetic number, because the mean of its divisors is an integer number (1132523859).

Almost surely, 2^4528372949 is an apocalyptic number.

It is an amenable number.

4528372949 is a deficient number, since it is larger than the sum of its proper divisors (1722487).

4528372949 is a wasteful number, since it uses less digits than its factorization.

4528372949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722486.

The product of its digits is 4354560, while the sum is 53.

The square root of 4528372949 is about 67293.1864975942. The cubic root of 4528372949 is about 1654.4261874705.

The spelling of 4528372949 in words is "four billion, five hundred twenty-eight million, three hundred seventy-two thousand, nine hundred forty-nine".