1918050929 has 4 divisors (see below), whose sum is σ = 1918191600. Its totient is φ = 1917910260.

The previous prime is 1918050919. The next prime is 1918050943. The reversal of 1918050929 is 9290508191.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1918050929 - 2¹² = 1918046833 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 1918050929.

It is not an unprimeable number, because it can be changed into a prime (1918050919) 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, 47387 + ... + 77984.

It is an arithmetic number, because the mean of its divisors is an integer number (479547900).

Almost surely, 2^1918050929 is an apocalyptic number.

It is an amenable number.

1918050929 is a deficient number, since it is larger than the sum of its proper divisors (140671).

1918050929 is a wasteful number, since it uses less digits than its factorization.

1918050929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140670.

The product of its (nonzero) digits is 58320, while the sum is 44.

The square root of 1918050929 is about 43795.5583250174. The cubic root of 1918050929 is about 1242.4722893795.

The spelling of 1918050929 in words is "one billion, nine hundred eighteen million, fifty thousand, nine hundred twenty-nine".