1903734 has 48 divisors (see below), whose sum is σ = 4885920. Its totient is φ = 524160.

The previous prime is 1903709. The next prime is 1903747. The reversal of 1903734 is 4373091.

It is a junction number, because it is equal to n+sod(n) for n = 1903698 and 1903707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3394 + ... + 3914.

It is an arithmetic number, because the mean of its divisors is an integer number (101790).

2^1903734 is an apocalyptic number.

1903734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1903734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2442960).

1903734 is an abundant number, since it is smaller than the sum of its proper divisors (2982186).

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

1903734 is a wasteful number, since it uses less digits than its factorization.

1903734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1903734 is about 1379.7586745515. The cubic root of 1903734 is about 123.9373165665.

The spelling of 1903734 in words is "one million, nine hundred three thousand, seven hundred thirty-four".