1900764 has 36 divisors (see below), whose sum is σ = 4938024. Its totient is φ = 616032.

The previous prime is 1900763. The next prime is 1900777. The reversal of 1900764 is 4670091.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1900764² = 7225807567392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900763) 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, 619 + ... + 2045.

2^1900764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1900764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2469012).

1900764 is an abundant number, since it is smaller than the sum of its proper divisors (3037260).

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

1900764 is a wasteful number, since it uses less digits than its factorization.

1900764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474 (or 1469 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1900764 is about 1378.6819792831. The cubic root of 1900764 is about 123.8728318194.

The spelling of 1900764 in words is "one million, nine hundred thousand, seven hundred sixty-four".