1202898640 has 40 divisors (see below), whose sum is σ = 2798524008. Its totient is φ = 480852480.

The previous prime is 1202898629. The next prime is 1202898659. The reversal of 1202898640 is 468982021.

It can be written as a sum of positive squares in 4 ways, for example, as 174028864 + 1028869776 = 13192^2 + 32076^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1202898640² = 2893930276227699200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1202898593 and 1202898602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154030 + ... + 161650.

Almost surely, 2^1202898640 is an apocalyptic number.

1202898640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202898640 is an abundant number, since it is smaller than the sum of its proper divisors (1595625368).

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

1202898640 is a wasteful number, since it uses less digits than its factorization.

1202898640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9607 (or 9601 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 1202898640 is about 34682.8291810227. The cubic root of 1202898640 is about 1063.5135102374.

The spelling of 1202898640 in words is "one billion, two hundred two million, eight hundred ninety-eight thousand, six hundred forty".