992940819 has 16 divisors (see below), whose sum is σ = 1471755264. Its totient is φ = 591328800.

The previous prime is 992940799. The next prime is 992940827. The reversal of 992940819 is 918049299.

It is a happy number.

It is not a de Polignac number, because 992940819 - 2¹⁷ = 992809747 is a prime.

It is a super-2 number, since 2×992940819² = 1971862940072781522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (992940899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409437 + ... + 411854.

It is an arithmetic number, because the mean of its divisors is an integer number (91984704).

Almost surely, 2^992940819 is an apocalyptic number.

992940819 is a deficient number, since it is larger than the sum of its proper divisors (478814445).

992940819 is a wasteful number, since it uses less digits than its factorization.

992940819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821338.

The product of its (nonzero) digits is 419904, while the sum is 51.

The square root of 992940819 is about 31510.9634730517. The cubic root of 992940819 is about 997.6413809566.

The spelling of 992940819 in words is "nine hundred ninety-two million, nine hundred forty thousand, eight hundred nineteen".