1209028492 has 24 divisors (see below), whose sum is σ = 2432043936. Its totient is φ = 515157888.

The previous prime is 1209028481. The next prime is 1209028493. The reversal of 1209028492 is 2948209021.

It is not an unprimeable number, because it can be changed into a prime (1209028493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119953 + ... + 129640.

It is an arithmetic number, because the mean of its divisors is an integer number (101335164).

Almost surely, 2^1209028492 is an apocalyptic number.

It is an amenable number.

1209028492 is an abundant number, since it is smaller than the sum of its proper divisors (1223015444).

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

1209028492 is a wasteful number, since it uses less digits than its factorization.

1209028492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249777 (or 249775 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1209028492 is about 34771.0870120564. The cubic root of 1209028492 is about 1065.3169700211.

The spelling of 1209028492 in words is "one billion, two hundred nine million, twenty-eight thousand, four hundred ninety-two".