1836350641 has 4 divisors (see below), whose sum is σ = 1854179392. Its totient is φ = 1818521892.

The previous prime is 1836350639. The next prime is 1836350653. The reversal of 1836350641 is 1460536381.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1460536381 = 24337 ⋅60013.

It is a cyclic number.

It is not a de Polignac number, because 1836350641 - 2¹ = 1836350639 is a prime.

It is a super-2 number, since 2×1836350641² = 6744367353402221762, which contains 22 as substring.

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 1836350641.

It is not an unprimeable number, because it can be changed into a prime (1836353641) 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, 8914221 + ... + 8914426.

It is an arithmetic number, because the mean of its divisors is an integer number (463544848).

Almost surely, 2^1836350641 is an apocalyptic number.

It is an amenable number.

1836350641 is a deficient number, since it is larger than the sum of its proper divisors (17828751).

1836350641 is a wasteful number, since it uses less digits than its factorization.

1836350641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17828750.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 1836350641 is about 42852.6620059944. The cubic root of 1836350641 is about 1224.5744774448.

The spelling of 1836350641 in words is "one billion, eight hundred thirty-six million, three hundred fifty thousand, six hundred forty-one".