405434454 has 16 divisors (see below), whose sum is σ = 811070400. Its totient is φ = 135111240.

The previous prime is 405434437. The next prime is 405434467. The reversal of 405434454 is 454434504.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35097 + ... + 45195.

It is an arithmetic number, because the mean of its divisors is an integer number (50691900).

Almost surely, 2^405434454 is an apocalyptic number.

405434454 is an abundant number, since it is smaller than the sum of its proper divisors (405635946).

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

405434454 is a wasteful number, since it uses less digits than its factorization.

405434454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16795.

The product of its (nonzero) digits is 76800, while the sum is 33.

The square root of 405434454 is about 20135.4030006851. The cubic root of 405434454 is about 740.1280847195.

Adding to 405434454 its reverse (454434504), we get a palindrome (859868958).

Subtracting 405434454 from its reverse (454434504), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 405434454 in words is "four hundred five million, four hundred thirty-four thousand, four hundred fifty-four".