400041324 has 18 divisors (see below), whose sum is σ = 1011215660. Its totient is φ = 133347096.

The previous prime is 400041269. The next prime is 400041353. The reversal of 400041324 is 423140004.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 400041297 and 400041306.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5556094 + ... + 5556165.

Almost surely, 2^400041324 is an apocalyptic number.

It is an amenable number.

400041324 is an abundant number, since it is smaller than the sum of its proper divisors (611174336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400041324 is a wasteful number, since it uses less digits than its factorization.

400041324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11112269 (or 11112264 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 400041324 is about 20001.0330733190. The cubic root of 400041324 is about 736.8316720073.

Adding to 400041324 its reverse (423140004), we get a palindrome (823181328).

It can be divided in two parts, 40004 and 1324, that added together give a triangular number (41328 = T₂₈₇).

The spelling of 400041324 in words is "four hundred million, forty-one thousand, three hundred twenty-four".