405012348 has 72 divisors (see below), whose sum is σ = 1126052928. Its totient is φ = 121961088.

The previous prime is 405012317. The next prime is 405012371. The reversal of 405012348 is 843210504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12790 + ... + 31202.

It is an arithmetic number, because the mean of its divisors is an integer number (15639624).

Almost surely, 2^405012348 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 405012348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563026464).

405012348 is an abundant number, since it is smaller than the sum of its proper divisors (721040580).

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

405012348 is a wasteful number, since it uses less digits than its factorization.

405012348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18483 (or 18478 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 405012348 is about 20124.9185836862. The cubic root of 405012348 is about 739.8711414293.

It can be divided in two parts, 40501 and 2348, that added together give a square (42849 = 207²).

The spelling of 405012348 in words is "four hundred five million, twelve thousand, three hundred forty-eight".