401745389 has 8 divisors (see below), whose sum is σ = 404424192. Its totient is φ = 399072960.

The previous prime is 401745373. The next prime is 401745391. The reversal of 401745389 is 983547104.

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 401745389 - 2⁴ = 401745373 is a prime.

It is a super-2 number, since 2×401745389² = 322798715165522642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401745349) 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, 213557 + ... + 215429.

It is an arithmetic number, because the mean of its divisors is an integer number (50553024).

Almost surely, 2^401745389 is an apocalyptic number.

It is an amenable number.

401745389 is a deficient number, since it is larger than the sum of its proper divisors (2678803).

401745389 is a wasteful number, since it uses less digits than its factorization.

401745389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 401745389 is about 20043.5872288371. The cubic root of 401745389 is about 737.8764227588.

The spelling of 401745389 in words is "four hundred one million, seven hundred forty-five thousand, three hundred eighty-nine".