1241002638 has 24 divisors (see below), whose sum is σ = 2691289848. Its totient is φ = 413290512.

The previous prime is 1241002603. The next prime is 1241002643. The reversal of 1241002638 is 8362001421.

1241002638 is a `hidden beast` number, since 1 + 24 + 1 + 0 + 0 + 2 + 638 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10756 + ... + 50967.

It is an arithmetic number, because the mean of its divisors is an integer number (112137077).

Almost surely, 2^1241002638 is an apocalyptic number.

1241002638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1241002638 is an abundant number, since it is smaller than the sum of its proper divisors (1450287210).

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

1241002638 is a wasteful number, since it uses less digits than its factorization.

1241002638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62848 (or 62845 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1241002638 is about 35227.8673495856. The cubic root of 1241002638 is about 1074.6265551224.

The spelling of 1241002638 in words is "one billion, two hundred forty-one million, two thousand, six hundred thirty-eight".