1380457518 has 32 divisors (see below), whose sum is σ = 3016559232. Its totient is φ = 417674400.

The previous prime is 1380457517. The next prime is 1380457523. The reversal of 1380457518 is 8157540831.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1380457518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380457513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27805 + ... + 59447.

It is an arithmetic number, because the mean of its divisors is an integer number (94267476).

Almost surely, 2^1380457518 is an apocalyptic number.

1380457518 is an abundant number, since it is smaller than the sum of its proper divisors (1636101714).

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

1380457518 is a wasteful number, since it uses less digits than its factorization.

1380457518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32320.

The product of its (nonzero) digits is 134400, while the sum is 42.

The square root of 1380457518 is about 37154.5087169781. The cubic root of 1380457518 is about 1113.4593044938.

The spelling of 1380457518 in words is "one billion, three hundred eighty million, four hundred fifty-seven thousand, five hundred eighteen".