1380072240 has 240 divisors, whose sum is σ = 4949201088. Its totient is φ = 343425024.

The previous prime is 1380072193. The next prime is 1380072241. The reversal of 1380072240 is 422700831.

It is a tau number, because it is divible by the number of its divisors (240).

It is not an unprimeable number, because it can be changed into a prime (1380072241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1676469 + ... + 1677291.

Almost surely, 2^1380072240 is an apocalyptic number.

1380072240 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 1380072240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2474600544).

1380072240 is an abundant number, since it is smaller than the sum of its proper divisors (3569128848).

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

1380072240 is a wasteful number, since it uses less digits than its factorization.

1380072240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996 (or 987 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 1380072240 is about 37149.3235470042. The cubic root of 1380072240 is about 1113.3557080933.

The spelling of 1380072240 in words is "one billion, three hundred eighty million, seventy-two thousand, two hundred forty".