1893036340 has 48 divisors (see below), whose sum is σ = 4290048000. Its totient is φ = 697518720.

The previous prime is 1893036331. The next prime is 1893036347. The reversal of 1893036340 is 436303981.

It is a self number, because there is not a number n which added to its sum of digits gives 1893036340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1893036347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122445 + ... + 137035.

It is an arithmetic number, because the mean of its divisors is an integer number (89376000).

Almost surely, 2^1893036340 is an apocalyptic number.

1893036340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1893036340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2145024000).

1893036340 is an abundant number, since it is smaller than the sum of its proper divisors (2397011660).

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

1893036340 is a wasteful number, since it uses less digits than its factorization.

1893036340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15112 (or 15110 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 1893036340 is about 43509.0374520053. The cubic root of 1893036340 is about 1237.0473321762.

It can be divided in two parts, 1893036 and 340, that added together give a square (1893376 = 1376²).

The spelling of 1893036340 in words is "one billion, eight hundred ninety-three million, thirty-six thousand, three hundred forty".