401550454 has 4 divisors (see below), whose sum is σ = 602325684. Its totient is φ = 200775226.

The previous prime is 401550451. The next prime is 401550463. The reversal of 401550454 is 454055104.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×401550454² = 322485534215212232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401550451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100387612 + ... + 100387615.

It is an arithmetic number, because the mean of its divisors is an integer number (150581421).

Almost surely, 2^401550454 is an apocalyptic number.

401550454 is a deficient number, since it is larger than the sum of its proper divisors (200775230).

401550454 is a wasteful number, since it uses less digits than its factorization.

401550454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200775229.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 401550454 is about 20038.7238615636. The cubic root of 401550454 is about 737.7570592556.

The spelling of 401550454 in words is "four hundred one million, five hundred fifty thousand, four hundred fifty-four".