401216454 has 12 divisors (see below), whose sum is σ = 869302356. Its totient is φ = 133738812.

The previous prime is 401216443. The next prime is 401216503. The reversal of 401216454 is 454612104.

401216454 is a `hidden beast` number, since 4 + 0 + 12 + 1 + 645 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11144884 + ... + 11144919.

It is an arithmetic number, because the mean of its divisors is an integer number (72441863).

Almost surely, 2^401216454 is an apocalyptic number.

401216454 is an abundant number, since it is smaller than the sum of its proper divisors (468085902).

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

401216454 is a wasteful number, since it uses less digits than its factorization.

401216454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22289811 (or 22289808 counting only the distinct ones).

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

The square root of 401216454 is about 20030.3882638355. The cubic root of 401216454 is about 737.5524529963.

Adding to 401216454 its reverse (454612104), we get a palindrome (855828558).

The spelling of 401216454 in words is "four hundred one million, two hundred sixteen thousand, four hundred fifty-four".