400013441 has 8 divisors (see below), whose sum is σ = 421293600. Its totient is φ = 378756000.

The previous prime is 400013423. The next prime is 400013461. The reversal of 400013441 is 144310004.

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 400013441 - 2⁶ = 400013377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400013461) 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, 39941 + ... + 48941.

It is an arithmetic number, because the mean of its divisors is an integer number (52661700).

Almost surely, 2^400013441 is an apocalyptic number.

It is an amenable number.

400013441 is a deficient number, since it is larger than the sum of its proper divisors (21280159).

400013441 is a wasteful number, since it uses less digits than its factorization.

400013441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11359.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 400013441 is about 20000.3360221772. The cubic root of 400013441 is about 736.8145524802.

Adding to 400013441 its reverse (144310004), we get a palindrome (544323445).

The spelling of 400013441 in words is "four hundred million, thirteen thousand, four hundred forty-one".