1922494040 has 32 divisors (see below), whose sum is σ = 4365306000. Its totient is φ = 761940864.

The previous prime is 1922494039. The next prime is 1922494087. The reversal of 1922494040 is 404942291.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216110 + ... + 224829.

Almost surely, 2^1922494040 is an apocalyptic number.

1922494040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1922494040 is an abundant number, since it is smaller than the sum of its proper divisors (2442811960).

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

1922494040 is a wasteful number, since it uses less digits than its factorization.

1922494040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441059 (or 441055 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1922494040 is about 43846.2545720840. The cubic root of 1922494040 is about 1243.4309335671.

The spelling of 1922494040 in words is "one billion, nine hundred twenty-two million, four hundred ninety-four thousand, forty".