1371020840 has 32 divisors (see below), whose sum is σ = 3525482880. Its totient is φ = 470064192.

The previous prime is 1371020839. The next prime is 1371020851. The reversal of 1371020840 is 480201731.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2447972 + ... + 2448531.

It is an arithmetic number, because the mean of its divisors is an integer number (110171340).

Almost surely, 2^1371020840 is an apocalyptic number.

1371020840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1371020840 is an abundant number, since it is smaller than the sum of its proper divisors (2154462040).

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

1371020840 is a wasteful number, since it uses less digits than its factorization.

1371020840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4896521 (or 4896517 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1371020840 is about 37027.2985782112. The cubic root of 1371020840 is about 1110.9163333982.

The spelling of 1371020840 in words is "one billion, three hundred seventy-one million, twenty thousand, eight hundred forty".