1914540 has 48 divisors (see below), whose sum is σ = 5679072. Its totient is φ = 480256.

The previous prime is 1914527. The next prime is 1914541. The reversal of 1914540 is 454191.

It is a self number, because there is not a number n which added to its sum of digits gives 1914540.

It is not an unprimeable number, because it can be changed into a prime (1914541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82 + ... + 1958.

It is an arithmetic number, because the mean of its divisors is an integer number (118314).

2^1914540 is an apocalyptic number.

1914540 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 1914540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2839536).

1914540 is an abundant number, since it is smaller than the sum of its proper divisors (3764532).

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

1914540 is a wasteful number, since it uses less digits than its factorization.

1914540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906 (or 1904 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1914540 is about 1383.6690355717. The cubic root of 1914540 is about 124.1713724825.

The spelling of 1914540 in words is "one million, nine hundred fourteen thousand, five hundred forty".