1914505340 has 96 divisors (see below), whose sum is σ = 4507937280. Its totient is φ = 676972800.

The previous prime is 1914505331. The next prime is 1914505343. The reversal of 1914505340 is 435054191.

It is a junction number, because it is equal to n+sod(n) for n = 1914505297 and 1914505306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1914505343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4152710 + ... + 4153170.

It is an arithmetic number, because the mean of its divisors is an integer number (46957680).

Almost surely, 2^1914505340 is an apocalyptic number.

1914505340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1914505340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2253968640).

1914505340 is an abundant number, since it is smaller than the sum of its proper divisors (2593431940).

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

1914505340 is a wasteful number, since it uses less digits than its factorization.

1914505340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963 (or 961 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 1914505340 is about 43755.0607358737. The cubic root of 1914505340 is about 1241.7062316317.

The spelling of 1914505340 in words is "one billion, nine hundred fourteen million, five hundred five thousand, three hundred forty".