20250340 has 48 divisors (see below), whose sum is σ = 46992960. Its totient is φ = 7268480.

The previous prime is 20250337. The next prime is 20250343. The reversal of 20250340 is 4305202.

It is an interprime number because it is at equal distance from previous prime (20250337) and next prime (20250343).

It is not an unprimeable number, because it can be changed into a prime (20250343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17706 + ... + 18814.

It is an arithmetic number, because the mean of its divisors is an integer number (979020).

Almost surely, 2^20250340 is an apocalyptic number.

20250340 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 20250340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23496480).

20250340 is an abundant number, since it is smaller than the sum of its proper divisors (26742620).

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

20250340 is a wasteful number, since it uses less digits than its factorization.

20250340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212 (or 1210 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 20250340 is about 4500.0377776192. The cubic root of 20250340 is about 272.5696144002.

Adding to 20250340 its reverse (4305202), we get a palindrome (24555542).

The spelling of 20250340 in words is "twenty million, two hundred fifty thousand, three hundred forty".