1200996290 has 32 divisors (see below), whose sum is σ = 2429312256. Its totient is φ = 424163520.

The previous prime is 1200996287. The next prime is 1200996319. The reversal of 1200996290 is 926990021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197846 + ... + 203825.

It is an arithmetic number, because the mean of its divisors is an integer number (75916008).

Almost surely, 2^1200996290 is an apocalyptic number.

1200996290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200996290 is an abundant number, since it is smaller than the sum of its proper divisors (1228315966).

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

1200996290 is a wasteful number, since it uses less digits than its factorization.

1200996290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401714.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 1200996290 is about 34655.3933753464. The cubic root of 1200996290 is about 1062.9525756393.

The spelling of 1200996290 in words is "one billion, two hundred million, nine hundred ninety-six thousand, two hundred ninety".