2381217405 has 32 divisors (see below), whose sum is σ = 4504377600. Its totient is φ = 1051018752.

The previous prime is 2381217367. The next prime is 2381217457. The reversal of 2381217405 is 5047121832.

It is not a de Polignac number, because 2381217405 - 2¹¹ = 2381215357 is a prime.

It is a congruent number.

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, 387960 + ... + 394049.

It is an arithmetic number, because the mean of its divisors is an integer number (140761800).

Almost surely, 2^2381217405 is an apocalyptic number.

It is an amenable number.

2381217405 is a deficient number, since it is larger than the sum of its proper divisors (2123160195).

2381217405 is a wasteful number, since it uses less digits than its factorization.

2381217405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782053.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 2381217405 is about 48797.7192602277. The cubic root of 2381217405 is about 1335.3640578746.

The spelling of 2381217405 in words is "two billion, three hundred eighty-one million, two hundred seventeen thousand, four hundred five".