20250347740 has 24 divisors (see below), whose sum is σ = 48600834912. Its totient is φ = 6942976320.

The previous prime is 20250347729. The next prime is 20250347771. The reversal of 20250347740 is 4774305202.

It is a junction number, because it is equal to n+sod(n) for n = 20250347696 and 20250347705.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 72322531 + ... + 72322810.

It is an arithmetic number, because the mean of its divisors is an integer number (2025034788).

Almost surely, 2^20250347740 is an apocalyptic number.

20250347740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20250347740 is an abundant number, since it is smaller than the sum of its proper divisors (28350487172).

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

20250347740 is a wasteful number, since it uses less digits than its factorization.

20250347740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144645357 (or 144645355 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 34.

The spelling of 20250347740 in words is "twenty billion, two hundred fifty million, three hundred forty-seven thousand, seven hundred forty".