992400819 has 8 divisors (see below), whose sum is σ = 1338068880. Its totient is φ = 654166656.

The previous prime is 992400797. The next prime is 992400821. The reversal of 992400819 is 918004299.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 992400819 - 2¹² = 992396723 is a prime.

It is a super-2 number, since 2×992400819² = 1969718771103741522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (992400319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1858162 + ... + 1858695.

It is an arithmetic number, because the mean of its divisors is an integer number (167258610).

Almost surely, 2^992400819 is an apocalyptic number.

992400819 is a deficient number, since it is larger than the sum of its proper divisors (345668061).

992400819 is a wasteful number, since it uses less digits than its factorization.

992400819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3716949.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 992400819 is about 31502.3938614195. The cubic root of 992400819 is about 997.4604960455.

The spelling of 992400819 in words is "nine hundred ninety-two million, four hundred thousand, eight hundred nineteen".