1241298990 has 48 divisors (see below), whose sum is σ = 3232429200. Its totient is φ = 330494976.

The previous prime is 1241298967. The next prime is 1241299019. The reversal of 1241298990 is 998921421.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48846 + ... + 69774.

It is an arithmetic number, because the mean of its divisors is an integer number (67342275).

Almost surely, 2^1241298990 is an apocalyptic number.

1241298990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1241298990 is an abundant number, since it is smaller than the sum of its proper divisors (1991130210).

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

1241298990 is a wasteful number, since it uses less digits than its factorization.

1241298990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21601 (or 21598 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 1241298990 is about 35232.0733139564. The cubic root of 1241298990 is about 1074.7120887526.

The spelling of 1241298990 in words is "one billion, two hundred forty-one million, two hundred ninety-eight thousand, nine hundred ninety".