405365496 has 64 divisors (see below), whose sum is σ = 1044412320. Its totient is φ = 131051520.

The previous prime is 405365491. The next prime is 405365497. The reversal of 405365496 is 694563504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405365491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104976 + ... + 108768.

Almost surely, 2^405365496 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 405365496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (522206160).

405365496 is an abundant number, since it is smaller than the sum of its proper divisors (639046824).

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

405365496 is a wasteful number, since it uses less digits than its factorization.

405365496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3936 (or 3932 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

The square root of 405365496 is about 20133.6905707821. The cubic root of 405365496 is about 740.0861209727.

The spelling of 405365496 in words is "four hundred five million, three hundred sixty-five thousand, four hundred ninety-six".