1914140 has 12 divisors (see below), whose sum is σ = 4019736. Its totient is φ = 765648.

The previous prime is 1914139. The next prime is 1914163. The reversal of 1914140 is 414191.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 95707 = 1914140 / (1 + 9 + 1 + 4 + 1 + 4 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47834 + ... + 47873.

It is an arithmetic number, because the mean of its divisors is an integer number (334978).

2^1914140 is an apocalyptic number.

1914140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1914140 is an abundant number, since it is smaller than the sum of its proper divisors (2105596).

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

1914140 is a wasteful number, since it uses less digits than its factorization.

1914140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95716 (or 95714 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1914140 is about 1383.5244847851. The cubic root of 1914140 is about 124.1627242766.

The spelling of 1914140 in words is "one million, nine hundred fourteen thousand, one hundred forty".