1355904 has 96 divisors (see below), whose sum is σ = 4296240. Its totient is φ = 407040.

The previous prime is 1355891. The next prime is 1355917. The reversal of 1355904 is 4095531.

It is an interprime number because it is at equal distance from previous prime (1355891) and next prime (1355917).

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12619 + ... + 12725.

2^1355904 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 1355904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2148120).

1355904 is an abundant number, since it is smaller than the sum of its proper divisors (2940336).

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

1355904 is a wasteful number, since it uses less digits than its factorization.

1355904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1355904 is about 1164.4329091880. The cubic root of 1355904 is about 110.6818256359.

The spelling of 1355904 in words is "one million, three hundred fifty-five thousand, nine hundred four".