400448411 has 6 divisors (see below), whose sum is σ = 440162436. Its totient is φ = 364043900.

The previous prime is 400448387. The next prime is 400448429. The reversal of 400448411 is 114844004.

It is a happy number.

It is not a de Polignac number, because 400448411 - 2²² = 396254107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400448441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1654625 + ... + 1654866.

It is an arithmetic number, because the mean of its divisors is an integer number (73360406).

Almost surely, 2^400448411 is an apocalyptic number.

400448411 is a deficient number, since it is larger than the sum of its proper divisors (39714025).

400448411 is a wasteful number, since it uses less digits than its factorization.

400448411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309513 (or 3309502 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 400448411 is about 20011.2071350031. The cubic root of 400448411 is about 737.0815236172.

The spelling of 400448411 in words is "four hundred million, four hundred forty-eight thousand, four hundred eleven".