201375440 has 40 divisors (see below), whose sum is σ = 535084800. Its totient is φ = 69042816.

The previous prime is 201375439. The next prime is 201375479. The reversal of 201375440 is 44573102.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179240 + ... + 180359.

It is an arithmetic number, because the mean of its divisors is an integer number (13377120).

Almost surely, 2^201375440 is an apocalyptic number.

201375440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201375440 is an abundant number, since it is smaller than the sum of its proper divisors (333709360).

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

201375440 is a wasteful number, since it uses less digits than its factorization.

201375440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359619 (or 359613 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 201375440 is about 14190.6814494583. The cubic root of 201375440 is about 586.1410897835.

The spelling of 201375440 in words is "two hundred one million, three hundred seventy-five thousand, four hundred forty".