400030053540 has 192 divisors, whose sum is σ = 1285778188800. Its totient is φ = 92054200320.

The previous prime is 400030053427. The next prime is 400030053547. The reversal of 400030053540 is 45350030004.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 400030053540.

It is not an unprimeable number, because it can be changed into a prime (400030053547) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1874505 + ... + 2076975.

It is an arithmetic number, because the mean of its divisors is an integer number (6696761400).

Almost surely, 2^400030053540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400030053540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (642889094400).

400030053540 is an abundant number, since it is smaller than the sum of its proper divisors (885748135260).

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

400030053540 is a wasteful number, since it uses less digits than its factorization.

400030053540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202662 (or 202660 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

Adding to 400030053540 its reverse (45350030004), we get a palindrome (445380083544).

The spelling of 400030053540 in words is "four hundred billion, thirty million, fifty-three thousand, five hundred forty".