1205667942 has 16 divisors (see below), whose sum is σ = 2434748160. Its totient is φ = 397987272.

The previous prime is 1205667941. The next prime is 1205667961. The reversal of 1205667942 is 2497665021.

It is a junction number, because it is equal to n+sod(n) for n = 1205667894 and 1205667903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205667941) 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, 974842 + ... + 976077.

It is an arithmetic number, because the mean of its divisors is an integer number (152171760).

Almost surely, 2^1205667942 is an apocalyptic number.

1205667942 is an abundant number, since it is smaller than the sum of its proper divisors (1229080218).

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

1205667942 is a wasteful number, since it uses less digits than its factorization.

1205667942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951027.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 1205667942 is about 34722.7294722060. The cubic root of 1205667942 is about 1064.3290216888.

The spelling of 1205667942 in words is "one billion, two hundred five million, six hundred sixty-seven thousand, nine hundred forty-two".