1340624020 has 24 divisors (see below), whose sum is σ = 2822047200. Its totient is φ = 534966432.

The previous prime is 1340624017. The next prime is 1340624053. The reversal of 1340624020 is 204260431.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1340623982 and 1340624000.

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, 71610 + ... + 88369.

It is an arithmetic number, because the mean of its divisors is an integer number (117585300).

Almost surely, 2^1340624020 is an apocalyptic number.

1340624020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340624020 is an abundant number, since it is smaller than the sum of its proper divisors (1481423180).

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

1340624020 is a wasteful number, since it uses less digits than its factorization.

1340624020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160407 (or 160405 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1340624020 is about 36614.5329070302. The cubic root of 1340624020 is about 1102.6448806334.

Adding to 1340624020 its reverse (204260431), we get a palindrome (1544884451).

The spelling of 1340624020 in words is "one billion, three hundred forty million, six hundred twenty-four thousand, twenty".