1911264 has 48 divisors (see below), whose sum is σ = 5144832. Its totient is φ = 620928.

The previous prime is 1911263. The next prime is 1911269. The reversal of 1911264 is 4621191.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1911263) 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, 3897 + ... + 4359.

It is an arithmetic number, because the mean of its divisors is an integer number (107184).

2^1911264 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 1911264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2572416).

1911264 is an abundant number, since it is smaller than the sum of its proper divisors (3233568).

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

1911264 is a wasteful number, since it uses less digits than its factorization.

1911264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519 (or 511 counting only the distinct ones).

The product of its digits is 432, while the sum is 24.

The square root of 1911264 is about 1382.4847196262. The cubic root of 1911264 is about 124.1005081747.

The spelling of 1911264 in words is "one million, nine hundred eleven thousand, two hundred sixty-four".