1922494752 has 72 divisors (see below), whose sum is σ = 5471395020. Its totient is φ = 640327680.

The previous prime is 1922494747. The next prime is 1922494753. The reversal of 1922494752 is 2574942291.

1922494752 is a `hidden beast` number, since 1 + 92 + 2 + 494 + 75 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1740892176 + 181602576 = 41724^2 + 13476^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 1922494698 and 1922494707.

It is not an unprimeable number, because it can be changed into a prime (1922494753) 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, 620824 + ... + 623912.

Almost surely, 2^1922494752 is an apocalyptic number.

1922494752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1922494752 is an abundant number, since it is smaller than the sum of its proper divisors (3548900268).

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

1922494752 is a wasteful number, since it uses less digits than its factorization.

1922494752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5266 (or 5255 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 1922494752 is about 43846.2626913629. The cubic root of 1922494752 is about 1243.4310870696.

The spelling of 1922494752 in words is "one billion, nine hundred twenty-two million, four hundred ninety-four thousand, seven hundred fifty-two".