1202224640 has 80 divisors (see below), whose sum is σ = 2975702400. Its totient is φ = 465346560.

The previous prime is 1202224637. The next prime is 1202224657. The reversal of 1202224640 is 464222021.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71786 + ... + 86934.

It is an arithmetic number, because the mean of its divisors is an integer number (37196280).

Almost surely, 2^1202224640 is an apocalyptic number.

1202224640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1202224640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1487851200).

1202224640 is an abundant number, since it is smaller than the sum of its proper divisors (1773477760).

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

1202224640 is an equidigital number, since it uses as much as digits as its factorization.

1202224640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15203 (or 15187 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1202224640 is about 34673.1111958532. Note that the first 4 decimals coincide. The cubic root of 1202224640 is about 1063.3148395701.

Adding to 1202224640 its reverse (464222021), we get a palindrome (1666446661).

The spelling of 1202224640 in words is "one billion, two hundred two million, two hundred twenty-four thousand, six hundred forty".