405551696 has 20 divisors (see below), whose sum is σ = 857189184. Its totient is φ = 184341600.

The previous prime is 405551693. The next prime is 405551701. The reversal of 405551696 is 696155504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405551693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151960 + ... + 1152311.

Almost surely, 2^405551696 is an apocalyptic number.

It is an amenable number.

405551696 is an abundant number, since it is smaller than the sum of its proper divisors (451637488).

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

405551696 is a wasteful number, since it uses less digits than its factorization.

405551696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304290 (or 2304284 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 405551696 is about 20138.3141300358. The cubic root of 405551696 is about 740.1994203227.

The spelling of 405551696 in words is "four hundred five million, five hundred fifty-one thousand, six hundred ninety-six".