1864342933 has 4 divisors (see below), whose sum is σ = 1864615788. Its totient is φ = 1864070080.

The previous prime is 1864342913. The next prime is 1864342943. The reversal of 1864342933 is 3392434681.

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 1571488164 + 292854769 = 39642^2 + 17113^2 .

It is a cyclic number.

It is not a de Polignac number, because 1864342933 - 2²⁵ = 1830788501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1864342933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1864342913) 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, 125908 + ... + 139933.

It is an arithmetic number, because the mean of its divisors is an integer number (466153947).

Almost surely, 2^1864342933 is an apocalyptic number.

It is an amenable number.

1864342933 is a deficient number, since it is larger than the sum of its proper divisors (272855).

1864342933 is an equidigital number, since it uses as much as digits as its factorization.

1864342933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272854.

The product of its digits is 373248, while the sum is 43.

The square root of 1864342933 is about 43178.0376233103. The cubic root of 1864342933 is about 1230.7653669551.

The spelling of 1864342933 in words is "one billion, eight hundred sixty-four million, three hundred forty-two thousand, nine hundred thirty-three".