1229760690 has 16 divisors (see below), whose sum is σ = 2951425728. Its totient is φ = 327936176.

The previous prime is 1229760673. The next prime is 1229760703. The reversal of 1229760690 is 960679221.

It is a super-2 number, since 2×1229760690² = 3024622709338552200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20495982 + ... + 20496041.

It is an arithmetic number, because the mean of its divisors is an integer number (184464108).

Almost surely, 2^1229760690 is an apocalyptic number.

1229760690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1229760690 is an abundant number, since it is smaller than the sum of its proper divisors (1721665038).

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

1229760690 is a wasteful number, since it uses less digits than its factorization.

1229760690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40992033.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 1229760690 is about 35067.9439089320. The cubic root of 1229760690 is about 1071.3717782976.

The spelling of 1229760690 in words is "one billion, two hundred twenty-nine million, seven hundred sixty thousand, six hundred ninety".