1197889402 has 8 divisors (see below), whose sum is σ = 1797976800. Its totient is φ = 598563804.

The previous prime is 1197889373. The next prime is 1197889421. The reversal of 1197889402 is 2049887911.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186502 + ... + 192817.

It is an arithmetic number, because the mean of its divisors is an integer number (224747100).

Almost surely, 2^1197889402 is an apocalyptic number.

1197889402 is a deficient number, since it is larger than the sum of its proper divisors (600087398).

1197889402 is a wasteful number, since it uses less digits than its factorization.

1197889402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380900.

The product of its (nonzero) digits is 290304, while the sum is 49.

The square root of 1197889402 is about 34610.5388862988. The cubic root of 1197889402 is about 1062.0351910531.

The spelling of 1197889402 in words is "one billion, one hundred ninety-seven million, eight hundred eighty-nine thousand, four hundred two".