203140620 has 72 divisors (see below), whose sum is σ = 617473584. Its totient is φ = 54058368.

The previous prime is 203140607. The next prime is 203140661. The reversal of 203140620 is 26041302.

It is a happy number.

203140620 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 40 + 620 = 666.

It is a super-2 number, since 2×203140620² = 82532222987968800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 203140593 and 203140602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121027 + ... + 122693.

It is an arithmetic number, because the mean of its divisors is an integer number (8576022).

Almost surely, 2^203140620 is an apocalyptic number.

203140620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203140620 is an abundant number, since it is smaller than the sum of its proper divisors (414332964).

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

203140620 is a wasteful number, since it uses less digits than its factorization.

203140620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359 (or 2354 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 203140620 is about 14252.7407890553. The cubic root of 203140620 is about 587.8487393790.

Adding to 203140620 its reverse (26041302), we get a palindrome (229181922).

The spelling of 203140620 in words is "two hundred three million, one hundred forty thousand, six hundred twenty".