400400231441330 has 8 divisors (see below), whose sum is σ = 720720416594412. Its totient is φ = 160160092576528.

The previous prime is 400400231441281. The next prime is 400400231441363. The reversal of 400400231441330 is 33144132004004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 367458727039369 + 32941504401961 = 19169213^2 + 5739469^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 400400231441293 and 400400231441302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20020011572057 + ... + 20020011572076.

Almost surely, 2^{400400231441330} is an apocalyptic number.

400400231441330 is a deficient number, since it is larger than the sum of its proper divisors (320320185153082).

400400231441330 is a wasteful number, since it uses less digits than its factorization.

400400231441330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40040023144140.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 400400231441330 its reverse (33144132004004), we get a palindrome (433544363445334).

The spelling of 400400231441330 in words is "four hundred trillion, four hundred billion, two hundred thirty-one million, four hundred forty-one thousand, three hundred thirty".