1348641840 has 160 divisors (see below), whose sum is σ = 5145670656. Its totient is φ = 284544000.

The previous prime is 1348641817. The next prime is 1348641857. The reversal of 1348641840 is 481468431.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9036 + ... + 52715.

Almost surely, 2^1348641840 is an apocalyptic number.

1348641840 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 1348641840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2572835328).

1348641840 is an abundant number, since it is smaller than the sum of its proper divisors (3797028816).

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

1348641840 is a wasteful number, since it uses less digits than its factorization.

1348641840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61787 (or 61781 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 1348641840 is about 36723.8592743192. The cubic root of 1348641840 is about 1104.8386952903.

The spelling of 1348641840 in words is "one billion, three hundred forty-eight million, six hundred forty-one thousand, eight hundred forty".