1340041020 has 24 divisors (see below), whose sum is σ = 3752115024. Its totient is φ = 357344256.

The previous prime is 1340040983. The next prime is 1340041057. The reversal of 1340041020 is 201400431.

It is an interprime number because it is at equal distance from previous prime (1340040983) and next prime (1340041057).

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, 11166949 + ... + 11167068.

It is an arithmetic number, because the mean of its divisors is an integer number (156338126).

Almost surely, 2^1340041020 is an apocalyptic number.

1340041020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340041020 is an abundant number, since it is smaller than the sum of its proper divisors (2412074004).

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

1340041020 is a wasteful number, since it uses less digits than its factorization.

1340041020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22334029 (or 22334027 counting only the distinct ones).

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

The square root of 1340041020 is about 36606.5707216614. The cubic root of 1340041020 is about 1102.4850209554.

Adding to 1340041020 its reverse (201400431), we get a palindrome (1541441451).

The spelling of 1340041020 in words is "one billion, three hundred forty million, forty-one thousand, twenty".