1350869640 has 256 divisors, whose sum is σ = 4546160640. Its totient is φ = 319488000.

The previous prime is 1350869621. The next prime is 1350869651. The reversal of 1350869640 is 469680531.

It is a junction number, because it is equal to n+sod(n) for n = 1350869592 and 1350869601.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2592580 + ... + 2593100.

It is an arithmetic number, because the mean of its divisors is an integer number (17758440).

Almost surely, 2^1350869640 is an apocalyptic number.

1350869640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1350869640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2273080320).

1350869640 is an abundant number, since it is smaller than the sum of its proper divisors (3195291000).

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

1350869640 is a wasteful number, since it uses less digits than its factorization.

1350869640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 1350869640 is about 36754.1785379567. The cubic root of 1350869640 is about 1105.4467157746.

The spelling of 1350869640 in words is "one billion, three hundred fifty million, eight hundred sixty-nine thousand, six hundred forty".