201388740 has 48 divisors (see below), whose sum is σ = 644445312. Its totient is φ = 46031616.

The previous prime is 201388729. The next prime is 201388751. The reversal of 201388740 is 47883102.

201388740 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201388729) and next prime (201388751).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239329 + ... + 240168.

It is an arithmetic number, because the mean of its divisors is an integer number (13425944).

Almost surely, 2^201388740 is an apocalyptic number.

201388740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201388740 is an abundant number, since it is smaller than the sum of its proper divisors (443056572).

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

201388740 is a wasteful number, since it uses less digits than its factorization.

201388740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479516 (or 479514 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 201388740 is about 14191.1500591037. The cubic root of 201388740 is about 586.1539935498.

The spelling of 201388740 in words is "two hundred one million, three hundred eighty-eight thousand, seven hundred forty".