1242801650 has 48 divisors (see below), whose sum is σ = 2348808000. Its totient is φ = 489188160.

The previous prime is 1242801649. The next prime is 1242801653. The reversal of 1242801650 is 561082421.

It is not an unprimeable number, because it can be changed into a prime (1242801653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 887651 + ... + 889049.

It is an arithmetic number, because the mean of its divisors is an integer number (48933500).

Almost surely, 2^1242801650 is an apocalyptic number.

1242801650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242801650 is a deficient number, since it is larger than the sum of its proper divisors (1106006350).

1242801650 is a wasteful number, since it uses less digits than its factorization.

1242801650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683 (or 1678 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1242801650 is about 35253.3920353772. The cubic root of 1242801650 is about 1075.1455797074.

The spelling of 1242801650 in words is "one billion, two hundred forty-two million, eight hundred one thousand, six hundred fifty".