1205992 has 16 divisors (see below), whose sum is σ = 2280960. Its totient is φ = 597744.

The previous prime is 1205977. The next prime is 1205999. The reversal of 1205992 is 2995021.

It is a self number, because there is not a number n which added to its sum of digits gives 1205992.

It is not an unprimeable number, because it can be changed into a prime (1205999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423 + ... + 1609.

It is an arithmetic number, because the mean of its divisors is an integer number (142560).

2^1205992 is an apocalyptic number.

It is an amenable number.

1205992 is a deficient number, since it is larger than the sum of its proper divisors (1074968).

1205992 is a wasteful number, since it uses less digits than its factorization.

1205992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 1316 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 1205992 is about 1098.1766706682. The cubic root of 1205992 is about 106.4424369511.

It can be divided in two parts, 1205 and 992, that added together give a cube (2197 = 13³).

The spelling of 1205992 in words is "one million, two hundred five thousand, nine hundred ninety-two".