20103492240 has 240 divisors, whose sum is σ = 75869644032. Its totient is φ = 4733346816.

The previous prime is 20103492221. The next prime is 20103492247. The reversal of 20103492240 is 4229430102.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-5 number, since 5×20103492240⁵ (a number of 53 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (20103492247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168589 + ... + 261971.

Almost surely, 2^20103492240 is an apocalyptic number.

20103492240 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 20103492240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37934822016).

20103492240 is an abundant number, since it is smaller than the sum of its proper divisors (55766151792).

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

20103492240 is a wasteful number, since it uses less digits than its factorization.

20103492240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93438 (or 93429 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The spelling of 20103492240 in words is "twenty billion, one hundred three million, four hundred ninety-two thousand, two hundred forty".