1202055840 has 72 divisors (see below), whose sum is σ = 4102020468. Its totient is φ = 320547840.

The previous prime is 1202055797. The next prime is 1202055851. The reversal of 1202055840 is 485502021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1074003984 + 128051856 = 32772^2 + 11316^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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, 415941 + ... + 418820.

Almost surely, 2^1202055840 is an apocalyptic number.

1202055840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202055840 is an abundant number, since it is smaller than the sum of its proper divisors (2899964628).

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

1202055840 is a wasteful number, since it uses less digits than its factorization.

1202055840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834782 (or 834771 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 1202055840 is about 34670.6769475302. The cubic root of 1202055840 is about 1063.2650718478.

Adding to 1202055840 its reverse (485502021), we get a palindrome (1687557861).

The spelling of 1202055840 in words is "one billion, two hundred two million, fifty-five thousand, eight hundred forty".