1213740290 has 48 divisors (see below), whose sum is σ = 2545038144. Its totient is φ = 415548000.

The previous prime is 1213740289. The next prime is 1213740301. The reversal of 1213740290 is 920473121.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 474515 + ... + 477065.

It is an arithmetic number, because the mean of its divisors is an integer number (53021628).

Almost surely, 2^1213740290 is an apocalyptic number.

1213740290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213740290 is an abundant number, since it is smaller than the sum of its proper divisors (1331297854).

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

1213740290 is a wasteful number, since it uses less digits than its factorization.

1213740290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543 (or 3536 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1213740290 is about 34838.7756673509. The cubic root of 1213740290 is about 1066.6990857117.

The spelling of 1213740290 in words is "one billion, two hundred thirteen million, seven hundred forty thousand, two hundred ninety".