1202840 has 16 divisors (see below), whose sum is σ = 2706480. Its totient is φ = 481120.

The previous prime is 1202837. The next prime is 1202843. The reversal of 1202840 is 482021.

It is an interprime number because it is at equal distance from previous prime (1202837) and next prime (1202843).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14996 + ... + 15075.

It is an arithmetic number, because the mean of its divisors is an integer number (169155).

2^1202840 is an apocalyptic number.

1202840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202840 is an abundant number, since it is smaller than the sum of its proper divisors (1503640).

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

1202840 is a wasteful number, since it uses less digits than its factorization.

1202840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30082 (or 30078 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1202840 is about 1096.7406256723. The cubic root of 1202840 is about 106.3496228248.

Adding to 1202840 its reverse (482021), we get a palindrome (1684861).

The spelling of 1202840 in words is "one million, two hundred two thousand, eight hundred forty".