20141747040 has 48 divisors (see below), whose sum is σ = 63446504688. Its totient is φ = 5371132416.

The previous prime is 20141747009. The next prime is 20141747047. The reversal of 20141747040 is 4074714102.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×20141747040³ (a number of 32 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 20141746989 and 20141747007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20141747047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20980507 + ... + 20981466.

It is an arithmetic number, because the mean of its divisors is an integer number (1321802181).

Almost surely, 2^20141747040 is an apocalyptic number.

20141747040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20141747040 is an abundant number, since it is smaller than the sum of its proper divisors (43304757648).

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

20141747040 is a wasteful number, since it uses less digits than its factorization.

20141747040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41961991 (or 41961983 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The spelling of 20141747040 in words is "twenty billion, one hundred forty-one million, seven hundred forty-seven thousand, forty".