1945930554 has 20 divisors (see below), whose sum is σ = 4360326234. Its totient is φ = 648643464.

The previous prime is 1945930523. The next prime is 1945930579. The reversal of 1945930554 is 4550395491.

1945930554 is a `hidden beast` number, since 1 + 9 + 4 + 5 + 93 + 0 + 554 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1312250625 + 633679929 = 36225^2 + 25173^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6005797 + ... + 6006120.

Almost surely, 2^1945930554 is an apocalyptic number.

1945930554 is an abundant number, since it is smaller than the sum of its proper divisors (2414395680).

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

1945930554 is a wasteful number, since it uses less digits than its factorization.

1945930554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12011931 (or 12011922 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 45.

The square root of 1945930554 is about 44112.7028643678. The cubic root of 1945930554 is about 1248.4632964613.

The spelling of 1945930554 in words is "one billion, nine hundred forty-five million, nine hundred thirty thousand, five hundred fifty-four".