1924428392 has 8 divisors (see below), whose sum is σ = 3608303250. Its totient is φ = 962214192.

The previous prime is 1924428391. The next prime is 1924428419. The reversal of 1924428392 is 2938244291.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1917213796 + 7214596 = 43786^2 + 2686^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1924428391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120276767 + ... + 120276782.

Almost surely, 2^1924428392 is an apocalyptic number.

It is an amenable number.

1924428392 is a deficient number, since it is larger than the sum of its proper divisors (1683874858).

1924428392 is a wasteful number, since it uses less digits than its factorization.

1924428392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240553555 (or 240553551 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 1924428392 is about 43868.3073755986. The cubic root of 1924428392 is about 1243.8478272521.

The spelling of 1924428392 in words is "one billion, nine hundred twenty-four million, four hundred twenty-eight thousand, three hundred ninety-two".