2401021515240 has 384 divisors, whose sum is σ = 8407751788800. Its totient is φ = 592062750720.

The previous prime is 2401021515199. The next prime is 2401021515241. The reversal of 2401021515240 is 425151201042.

It is a happy number.

2401021515240 is a `hidden beast` number, since 2 + 4 + 0 + 102 + 1 + 515 + 2 + 40 = 666.

It is not an unprimeable number, because it can be changed into a prime (2401021515241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 127304931 + ... + 127323789.

It is an arithmetic number, because the mean of its divisors is an integer number (21895186950).

Almost surely, 2^{2401021515240} is an apocalyptic number.

2401021515240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2401021515240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4203875894400).

2401021515240 is an abundant number, since it is smaller than the sum of its proper divisors (6006730273560).

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

2401021515240 is a wasteful number, since it uses less digits than its factorization.

2401021515240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19257 (or 19250 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 2401021515240 its reverse (425151201042), we get a palindrome (2826172716282).

The spelling of 2401021515240 in words is "two trillion, four hundred one billion, twenty-one million, five hundred fifteen thousand, two hundred forty".