1229930190 has 128 divisors (see below), whose sum is σ = 3398889600. Its totient is φ = 316293120.

The previous prime is 1229930171. The next prime is 1229930197. The reversal of 1229930190 is 910399221.

It is a happy number.

It is a super-2 number, since 2×1229930190² = 3025456544546872200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229930197) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 872206 + ... + 873614.

It is an arithmetic number, because the mean of its divisors is an integer number (26553825).

Almost surely, 2^1229930190 is an apocalyptic number.

1229930190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1229930190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1699444800).

1229930190 is an abundant number, since it is smaller than the sum of its proper divisors (2168959410).

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

1229930190 is a wasteful number, since it uses less digits than its factorization.

1229930190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539 (or 1533 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 1229930190 is about 35070.3605627316. The cubic root of 1229930190 is about 1071.4209990322.

The spelling of 1229930190 in words is "one billion, two hundred twenty-nine million, nine hundred thirty thousand, one hundred ninety".