1199920460 has 12 divisors (see below), whose sum is σ = 2519833008. Its totient is φ = 479968176.

The previous prime is 1199920457. The next prime is 1199920489. The reversal of 1199920460 is 640299911.

It is a happy number.

It is a super-2 number, since 2×1199920460² = 2879618220653223200, which contains 22 as substring.

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, 29997992 + ... + 29998031.

It is an arithmetic number, because the mean of its divisors is an integer number (209986084).

Almost surely, 2^1199920460 is an apocalyptic number.

1199920460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1199920460 is an abundant number, since it is smaller than the sum of its proper divisors (1319912548).

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

1199920460 is a wasteful number, since it uses less digits than its factorization.

1199920460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59996032 (or 59996030 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 1199920460 is about 34639.8680713423. The cubic root of 1199920460 is about 1062.6350898131.

The spelling of 1199920460 in words is "one billion, one hundred ninety-nine million, nine hundred twenty thousand, four hundred sixty".