401684288 has 14 divisors (see below), whose sum is σ = 797092386. Its totient is φ = 200842112.

The previous prime is 401684281. The next prime is 401684291. The reversal of 401684288 is 882486104.

It can be written as a sum of positive squares in only one way, i.e., 400320064 + 1364224 = 20008^2 + 1168^2 .

It is a super-2 number, since 2×401684288² = 322700534452133888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401684281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3138095 + ... + 3138222.

Almost surely, 2^401684288 is an apocalyptic number.

It is an amenable number.

401684288 is a deficient number, since it is larger than the sum of its proper divisors (395408098).

401684288 is an equidigital number, since it uses as much as digits as its factorization.

401684288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6276329 (or 6276319 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 41.

The square root of 401684288 is about 20042.0629676688. The cubic root of 401684288 is about 737.8390132665.

The spelling of 401684288 in words is "four hundred one million, six hundred eighty-four thousand, two hundred eighty-eight".