405605001396 has 96 divisors (see below), whose sum is σ = 1099381248000. Its totient is φ = 113994361728.

The previous prime is 405605001379. The next prime is 405605001401. The reversal of 405605001396 is 693100506504.

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, 1671475 + ... + 1898693.

It is an arithmetic number, because the mean of its divisors is an integer number (11451888000).

Almost surely, 2^405605001396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 405605001396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (549690624000).

405605001396 is an abundant number, since it is smaller than the sum of its proper divisors (693776246604).

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

405605001396 is a wasteful number, since it uses less digits than its factorization.

405605001396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227581 (or 227579 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The spelling of 405605001396 in words is "four hundred five billion, six hundred five million, one thousand, three hundred ninety-six".