401466021 has 48 divisors (see below), whose sum is σ = 614242944. Its totient is φ = 232848000.

The previous prime is 401466019. The next prime is 401466041. The reversal of 401466021 is 120664104.

It is not a de Polignac number, because 401466021 - 2¹ = 401466019 is a prime.

It is a super-2 number, since 2×401466021² = 322349932035144882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401465982 and 401466000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401466001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 953391 + ... + 953811.

It is an arithmetic number, because the mean of its divisors is an integer number (12796728).

Almost surely, 2^401466021 is an apocalyptic number.

It is an amenable number.

401466021 is a deficient number, since it is larger than the sum of its proper divisors (212776923).

401466021 is a wasteful number, since it uses less digits than its factorization.

401466021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 401466021 is about 20036.6170048739. The cubic root of 401466021 is about 737.7053468596.

The spelling of 401466021 in words is "four hundred one million, four hundred sixty-six thousand, twenty-one".