203720742 has 48 divisors (see below), whose sum is σ = 454974000. Its totient is φ = 65831616.

The previous prime is 203720689. The next prime is 203720743. The reversal of 203720742 is 247027302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203720743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 332028 + ... + 332640.

It is an arithmetic number, because the mean of its divisors is an integer number (9478625).

Almost surely, 2^203720742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203720742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227487000).

203720742 is an abundant number, since it is smaller than the sum of its proper divisors (251253258).

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

203720742 is a wasteful number, since it uses less digits than its factorization.

203720742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 203720742 is about 14273.0775237858. The cubic root of 203720742 is about 588.4077936148.

The spelling of 203720742 in words is "two hundred three million, seven hundred twenty thousand, seven hundred forty-two".