1916909358 has 64 divisors (see below), whose sum is σ = 4996131840. Its totient is φ = 475817472.

The previous prime is 1916909347. The next prime is 1916909369. The reversal of 1916909358 is 8539096191.

It is a happy number.

1916909358 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1916909347) and next prime (1916909369).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 1916909358.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93978 + ... + 112541.

It is an arithmetic number, because the mean of its divisors is an integer number (78064560).

Almost surely, 2^1916909358 is an apocalyptic number.

1916909358 is an abundant number, since it is smaller than the sum of its proper divisors (3079222482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1916909358 is a wasteful number, since it uses less digits than its factorization.

1916909358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206561.

The product of its (nonzero) digits is 524880, while the sum is 51.

The square root of 1916909358 is about 43782.5234311592. The cubic root of 1916909358 is about 1242.2257453841.

The spelling of 1916909358 in words is "one billion, nine hundred sixteen million, nine hundred nine thousand, three hundred fifty-eight".