1914920 has 48 divisors (see below), whose sum is σ = 5017140. Its totient is φ = 655872.

The previous prime is 1914889. The next prime is 1914923. The reversal of 1914920 is 294191.

It can be written as a sum of positive squares in 2 ways, for example, as 1844164 + 70756 = 1358^2 + 266^2 .

It is a super-3 number, since 3×1914920³ = 21065567333302464000, which contains 333 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1914920.

It is not an unprimeable number, because it can be changed into a prime (1914923) 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, 1472 + ... + 2448.

2^1914920 is an apocalyptic number.

1914920 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 1914920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2508570).

1914920 is an abundant number, since it is smaller than the sum of its proper divisors (3102220).

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

1914920 is a wasteful number, since it uses less digits than its factorization.

1914920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 1914920 is about 1383.8063448330. The cubic root of 1914920 is about 124.1795871625.

The spelling of 1914920 in words is "one million, nine hundred fourteen thousand, nine hundred twenty".