1897294050 has 48 divisors (see below), whose sum is σ = 5228102880. Its totient is φ = 505944720.

The previous prime is 1897294013. The next prime is 1897294051. The reversal of 1897294050 is 504927981.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1897293987 and 1897294005.

It is not an unprimeable number, because it can be changed into a prime (1897294051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 701352 + ... + 704051.

It is an arithmetic number, because the mean of its divisors is an integer number (108918810).

Almost surely, 2^1897294050 is an apocalyptic number.

1897294050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1897294050 is an abundant number, since it is smaller than the sum of its proper divisors (3330808830).

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

1897294050 is a wasteful number, since it uses less digits than its factorization.

1897294050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405424 (or 1405413 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 1897294050 is about 43557.9390008297. The cubic root of 1897294050 is about 1237.9740699738.

The spelling of 1897294050 in words is "one billion, eight hundred ninety-seven million, two hundred ninety-four thousand, fifty".