400244256030 has 32 divisors (see below), whose sum is σ = 993709879200. Its totient is φ = 103051394432.

The previous prime is 400244255977. The next prime is 400244256037. The reversal of 400244256030 is 30652442004.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400244256037) 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, 230024565 + ... + 230026304.

It is an arithmetic number, because the mean of its divisors is an integer number (31053433725).

Almost surely, 2^400244256030 is an apocalyptic number.

400244256030 is an abundant number, since it is smaller than the sum of its proper divisors (593465623170).

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

400244256030 is a wasteful number, since it uses less digits than its factorization.

400244256030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460050908.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 400244256030 its reverse (30652442004), we get a palindrome (430896698034).

The spelling of 400244256030 in words is "four hundred billion, two hundred forty-four million, two hundred fifty-six thousand, thirty".