1901696 has 32 divisors (see below), whose sum is σ = 3855600. Its totient is φ = 934144.

The previous prime is 1901681. The next prime is 1901699. The reversal of 1901696 is 6961091.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (1901699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10535 + ... + 10713.

2^1901696 is an apocalyptic number.

1901696 is a gapful number since it is divisible by the number (16) 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 1901696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1927800).

1901696 is an abundant number, since it is smaller than the sum of its proper divisors (1953904).

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

1901696 is an equidigital number, since it uses as much as digits as its factorization.

1901696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 1901696 is about 1379.0199418428. The cubic root of 1901696 is about 123.8930746648.

The spelling of 1901696 in words is "one million, nine hundred one thousand, six hundred ninety-six".