904134 has 64 divisors (see below), whose sum is σ = 2396160. Its totient is φ = 220320.

The previous prime is 904121. The next prime is 904147. The reversal of 904134 is 431409.

904134 = T₂₄₀ + T₂₄₁ + ... + T₂₆₇.

It is an interprime number because it is at equal distance from previous prime (904121) and next prime (904147).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 904134.

It is a congruent number.

It is an unprimeable number.

904134 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8727 + ... + 8829.

It is an arithmetic number, because the mean of its divisors is an integer number (37440).

2⁹⁰⁴¹³⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 904134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1198080).

904134 is an abundant number, since it is smaller than the sum of its proper divisors (1492026).

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

904134 is a wasteful number, since it uses less digits than its factorization.

904134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 904134 is about 950.8596110888. The cubic root of 904134 is about 96.6965398490.

It can be divided in two parts, 90 and 4134, that added together give a palindrome (4224).

The spelling of 904134 in words is "nine hundred four thousand, one hundred thirty-four".