1242802650 has 48 divisors (see below), whose sum is σ = 3092177088. Its totient is φ = 330336000.

The previous prime is 1242802607. The next prime is 1242802651. The reversal of 1242802650 is 562082421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1242802651) 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, 33330 + ... + 59970.

It is an arithmetic number, because the mean of its divisors is an integer number (64420356).

Almost surely, 2^1242802650 is an apocalyptic number.

1242802650 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 1242802650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1546088544).

1242802650 is an abundant number, since it is smaller than the sum of its proper divisors (1849374438).

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

1242802650 is a wasteful number, since it uses less digits than its factorization.

1242802650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26967 (or 26962 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 1242802650 is about 35253.4062184068. The cubic root of 1242802650 is about 1075.1458680734.

The spelling of 1242802650 in words is "one billion, two hundred forty-two million, eight hundred two thousand, six hundred fifty".