1916740 has 24 divisors (see below), whose sum is σ = 4600512. Its totient is φ = 657120.

The previous prime is 1916737. The next prime is 1916741. The reversal of 1916740 is 476191.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1916699 and 1916708.

It is not an unprimeable number, because it can be changed into a prime (1916741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6706 + ... + 6985.

It is an arithmetic number, because the mean of its divisors is an integer number (191688).

2^1916740 is an apocalyptic number.

1916740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1916740 is an abundant number, since it is smaller than the sum of its proper divisors (2683772).

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

1916740 is a wasteful number, since it uses less digits than its factorization.

1916740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13707 (or 13705 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1916740 is about 1384.4637951207. The cubic root of 1916740 is about 124.2189160962.

The spelling of 1916740 in words is "one million, nine hundred sixteen thousand, seven hundred forty".