201071490 has 32 divisors (see below), whose sum is σ = 507971520. Its totient is φ = 50796864.

The previous prime is 201071467. The next prime is 201071491. The reversal of 201071490 is 94170102.

It is a self number, because there is not a number n which added to its sum of digits gives 201071490.

It is not an unprimeable number, because it can be changed into a prime (201071491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175809 + ... + 176948.

It is an arithmetic number, because the mean of its divisors is an integer number (15874110).

Almost surely, 2^201071490 is an apocalyptic number.

201071490 is an abundant number, since it is smaller than the sum of its proper divisors (306900030).

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

201071490 is a wasteful number, since it uses less digits than its factorization.

201071490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352786.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 201071490 is about 14179.9679125166. The cubic root of 201071490 is about 585.8460400748.

The spelling of 201071490 in words is "two hundred one million, seventy-one thousand, four hundred ninety".