401455403 has 4 divisors (see below), whose sum is σ = 402370320. Its totient is φ = 400540488.

The previous prime is 401455399. The next prime is 401455421. The reversal of 401455403 is 304554104.

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

It is a cyclic number.

It is not a de Polignac number, because 401455403 - 2² = 401455399 is a prime.

It is a super-2 number, since 2×401455403² = 322332881195784818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401455463) 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 in 3 ways as a sum of consecutive naturals, for example, 456800 + ... + 457677.

It is an arithmetic number, because the mean of its divisors is an integer number (100592580).

Almost surely, 2^401455403 is an apocalyptic number.

401455403 is a deficient number, since it is larger than the sum of its proper divisors (914917).

401455403 is an equidigital number, since it uses as much as digits as its factorization.

401455403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914916.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 401455403 is about 20036.3520382329. The cubic root of 401455403 is about 737.6988431756.

The spelling of 401455403 in words is "four hundred one million, four hundred fifty-five thousand, four hundred three".