401359409 has 8 divisors (see below), whose sum is σ = 463602528. Its totient is φ = 343408960.

The previous prime is 401359403. The next prime is 401359411. The reversal of 401359409 is 904953104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401359409 - 2⁴ = 401359393 is a prime.

It is a super-2 number, since 2×401359409² = 322178750385658562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401359403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072967 + ... + 1073340.

It is an arithmetic number, because the mean of its divisors is an integer number (57950316).

Almost surely, 2^401359409 is an apocalyptic number.

It is an amenable number.

401359409 is a deficient number, since it is larger than the sum of its proper divisors (62243119).

401359409 is a wasteful number, since it uses less digits than its factorization.

401359409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146335.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 401359409 is about 20033.9563990740. The cubic root of 401359409 is about 737.6400402075.

The spelling of 401359409 in words is "four hundred one million, three hundred fifty-nine thousand, four hundred nine".