201572334 has 32 divisors (see below), whose sum is σ = 450548640. Its totient is φ = 66799296.

The previous prime is 201572317. The next prime is 201572377. The reversal of 201572334 is 433275102.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 201572298 and 201572307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1447 + ... + 20130.

It is an arithmetic number, because the mean of its divisors is an integer number (14079645).

Almost surely, 2^201572334 is an apocalyptic number.

201572334 is an abundant number, since it is smaller than the sum of its proper divisors (248976306).

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

201572334 is a wasteful number, since it uses less digits than its factorization.

201572334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21761 (or 21755 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 201572334 is about 14197.6171944450. The cubic root of 201572334 is about 586.3320598955.

The spelling of 201572334 in words is "two hundred one million, five hundred seventy-two thousand, three hundred thirty-four".