1930774450 has 24 divisors (see below), whose sum is σ = 3917718000. Its totient is φ = 702099600.

The previous prime is 1930774423. The next prime is 1930774451. The reversal of 1930774450 is 544770391.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1930774451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1754700 + ... + 1755799.

It is an arithmetic number, because the mean of its divisors is an integer number (163238250).

Almost surely, 2^1930774450 is an apocalyptic number.

1930774450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1930774450 is an abundant number, since it is smaller than the sum of its proper divisors (1986943550).

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

1930774450 is a wasteful number, since it uses less digits than its factorization.

1930774450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510522 (or 3510517 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 1930774450 is about 43940.5786261401. The cubic root of 1930774450 is about 1245.2135781930.

The spelling of 1930774450 in words is "one billion, nine hundred thirty million, seven hundred seventy-four thousand, four hundred fifty".