400210140244 has 48 divisors (see below), whose sum is σ = 737612789760. Its totient is φ = 189746707680.

The previous prime is 400210140193. The next prime is 400210140247. The reversal of 400210140244 is 442041012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400210140247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2156919 + ... + 2335105.

It is an arithmetic number, because the mean of its divisors is an integer number (15366933120).

Almost surely, 2^400210140244 is an apocalyptic number.

It is an amenable number.

400210140244 is a deficient number, since it is larger than the sum of its proper divisors (337402649516).

400210140244 is a wasteful number, since it uses less digits than its factorization.

400210140244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178588 (or 178586 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 400210140244 its reverse (442041012004), we get a palindrome (842251152248).

The spelling of 400210140244 in words is "four hundred billion, two hundred ten million, one hundred forty thousand, two hundred forty-four".