1914945284 has 36 divisors (see below), whose sum is σ = 4032716940. Its totient is φ = 792388800.

The previous prime is 1914945283. The next prime is 1914945289. The reversal of 1914945284 is 4825494191.

It can be written as a sum of positive squares in 2 ways, for example, as 566440000 + 1348505284 = 23800^2 + 36722^2 .

It is not an unprimeable number, because it can be changed into a prime (1914945283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162767 + ... + 174134.

It is an arithmetic number, because the mean of its divisors is an integer number (112019915).

Almost surely, 2^1914945284 is an apocalyptic number.

1914945284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1914945284 is an abundant number, since it is smaller than the sum of its proper divisors (2117771656).

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

1914945284 is a wasteful number, since it uses less digits than its factorization.

1914945284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336948 (or 336939 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 1914945284 is about 43760.0877969869. The cubic root of 1914945284 is about 1241.8013370280.

The spelling of 1914945284 in words is "one billion, nine hundred fourteen million, nine hundred forty-five thousand, two hundred eighty-four".