40401530244 has 60 divisors (see below), whose sum is σ = 105793826908. Its totient is φ = 13444704000.

The previous prime is 40401530203. The next prime is 40401530263. The reversal of 40401530244 is 44203510404.

It is a happy number.

40401530244 is a `hidden beast` number, since 404 + 0 + 15 + 3 + 0 + 244 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20689370244 + 19712160000 = 143838^2 + 140400^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 90984 + ... + 298464.

Almost surely, 2^40401530244 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 40401530244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52896913454).

40401530244 is an abundant number, since it is smaller than the sum of its proper divisors (65392296664).

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

40401530244 is a wasteful number, since it uses less digits than its factorization.

40401530244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208098 (or 208087 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The spelling of 40401530244 in words is "forty billion, four hundred one million, five hundred thirty thousand, two hundred forty-four".