201387670 has 32 divisors (see below), whose sum is σ = 406148256. Its totient is φ = 71251200.

The previous prime is 201387653. The next prime is 201387673. The reversal of 201387670 is 76783102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201387673) 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, 20671 + ... + 28810.

It is an arithmetic number, because the mean of its divisors is an integer number (12692133).

Almost surely, 2^201387670 is an apocalyptic number.

201387670 is an abundant number, since it is smaller than the sum of its proper divisors (204760586).

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

201387670 is a wasteful number, since it uses less digits than its factorization.

201387670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49536.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 201387670 is about 14191.1123595016. The cubic root of 201387670 is about 586.1529554483.

The spelling of 201387670 in words is "two hundred one million, three hundred eighty-seven thousand, six hundred seventy".