401973401 has 4 divisors (see below), whose sum is σ = 407973072. Its totient is φ = 395973732.

The previous prime is 401973391. The next prime is 401973457. The reversal of 401973401 is 104379104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 401973401 - 2¹⁰ = 401972377 is a prime.

It is a super-2 number, since 2×401973401² = 323165230223013602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401973301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2999735 + ... + 2999868.

It is an arithmetic number, because the mean of its divisors is an integer number (101993268).

Almost surely, 2^401973401 is an apocalyptic number.

It is an amenable number.

401973401 is a deficient number, since it is larger than the sum of its proper divisors (5999671).

401973401 is an equidigital number, since it uses as much as digits as its factorization.

401973401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5999670.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 401973401 is about 20049.2743260199. The cubic root of 401973401 is about 738.0159911391.

The spelling of 401973401 in words is "four hundred one million, nine hundred seventy-three thousand, four hundred one".