1380073655 has 16 divisors (see below), whose sum is σ = 1711315200. Its totient is φ = 1067316480.

The previous prime is 1380073627. The next prime is 1380073697. The reversal of 1380073655 is 5563700831.

It is not a de Polignac number, because 1380073655 - 2⁸ = 1380073399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161531 + ... + 169859.

It is an arithmetic number, because the mean of its divisors is an integer number (106957200).

Almost surely, 2^1380073655 is an apocalyptic number.

1380073655 is a deficient number, since it is larger than the sum of its proper divisors (331241545).

1380073655 is a wasteful number, since it uses less digits than its factorization.

1380073655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9434.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 1380073655 is about 37149.3425917606. The cubic root of 1380073655 is about 1113.3560886043.

The spelling of 1380073655 in words is "one billion, three hundred eighty million, seventy-three thousand, six hundred fifty-five".