401776450 has 12 divisors (see below), whose sum is σ = 747304290. Its totient is φ = 160710560.

The previous prime is 401776409. The next prime is 401776457. The reversal of 401776450 is 54677104.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 255584169 + 146192281 = 15987^2 + 12091^2 .

It is a super-3 number, since 3×401776450³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (401776457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4017715 + ... + 4017814.

Almost surely, 2^401776450 is an apocalyptic number.

401776450 is a deficient number, since it is larger than the sum of its proper divisors (345527840).

401776450 is a wasteful number, since it uses less digits than its factorization.

401776450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8035541 (or 8035536 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 401776450 is about 20044.3620502125. The cubic root of 401776450 is about 737.8954386078.

The spelling of 401776450 in words is "four hundred one million, seven hundred seventy-six thousand, four hundred fifty".