52340389 has 4 divisors (see below), whose sum is σ = 54145260. Its totient is φ = 50535520.

The previous prime is 52340329. The next prime is 52340401. The reversal of 52340389 is 98304325.

It is a happy number.

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 9333025 + 43007364 = 3055^2 + 6558^2 .

It is a cyclic number.

It is not a de Polignac number, because 52340389 - 2⁹ = 52339877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52340329) 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, 902392 + ... + 902449.

It is an arithmetic number, because the mean of its divisors is an integer number (13536315).

Almost surely, 2^52340389 is an apocalyptic number.

It is an amenable number.

52340389 is a deficient number, since it is larger than the sum of its proper divisors (1804871).

52340389 is a wasteful number, since it uses less digits than its factorization.

52340389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804870.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 52340389 is about 7234.6657835729. The cubic root of 52340389 is about 374.0637718092.

The spelling of 52340389 in words is "fifty-two million, three hundred forty thousand, three hundred eighty-nine".