1864730109 has 8 divisors (see below), whose sum is σ = 2712334752. Its totient is φ = 1130139440.

The previous prime is 1864730099. The next prime is 1864730113. The reversal of 1864730109 is 9010374681.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1864730109 - 2¹³ = 1864721917 is a prime.

It is a super-2 number, since 2×1864730109² = 6954436758822303762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1864730009) 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 7 ways as a sum of consecutive naturals, for example, 28253454 + ... + 28253519.

It is an arithmetic number, because the mean of its divisors is an integer number (339041844).

Almost surely, 2^1864730109 is an apocalyptic number.

It is an amenable number.

1864730109 is a deficient number, since it is larger than the sum of its proper divisors (847604643).

1864730109 is a wasteful number, since it uses less digits than its factorization.

1864730109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56506987.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 1864730109 is about 43182.5208736127. The cubic root of 1864730109 is about 1230.8505604782.

The spelling of 1864730109 in words is "one billion, eight hundred sixty-four million, seven hundred thirty thousand, one hundred nine".