992120742 has 12 divisors (see below), whose sum is σ = 2149594980. Its totient is φ = 330706908.

The previous prime is 992120737. The next prime is 992120749. The reversal of 992120742 is 247021299.

It is a junction number, because it is equal to n+sod(n) for n = 992120697 and 992120706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992120749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27558892 + ... + 27558927.

It is an arithmetic number, because the mean of its divisors is an integer number (179132915).

Almost surely, 2^992120742 is an apocalyptic number.

992120742 is an abundant number, since it is smaller than the sum of its proper divisors (1157474238).

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

992120742 is a wasteful number, since it uses less digits than its factorization.

992120742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55117827 (or 55117824 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 992120742 is about 31497.9482188920. The cubic root of 992120742 is about 997.3666522332.

The spelling of 992120742 in words is "nine hundred ninety-two million, one hundred twenty thousand, seven hundred forty-two".