405074011620 has 96 divisors (see below), whose sum is σ = 1165845518208. Its totient is φ = 105011500032.

The previous prime is 405074011613. The next prime is 405074011633. The reversal of 405074011620 is 26110470504.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2571987 + ... + 2724933.

It is an arithmetic number, because the mean of its divisors is an integer number (12144224148).

Almost surely, 2^405074011620 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 405074011620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582922759104).

405074011620 is an abundant number, since it is smaller than the sum of its proper divisors (760771506588).

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

405074011620 is a wasteful number, since it uses less digits than its factorization.

405074011620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154189 (or 154187 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The spelling of 405074011620 in words is "four hundred five billion, seventy-four million, eleven thousand, six hundred twenty".