1202640 has 40 divisors (see below), whose sum is σ = 3728928. Its totient is φ = 320640.

The previous prime is 1202633. The next prime is 1202689. The reversal of 1202640 is 462021.

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

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 2266 + ... + 2745.

2^1202640 is an apocalyptic number.

1202640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202640 is an abundant number, since it is smaller than the sum of its proper divisors (2526288).

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

1202640 is a wasteful number, since it uses less digits than its factorization.

1202640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027 (or 5021 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1202640 is about 1096.6494426206. The cubic root of 1202640 is about 106.3437281357.

Adding to 1202640 its reverse (462021), we get a palindrome (1664661).

The spelling of 1202640 in words is "one million, two hundred two thousand, six hundred forty".