201620418 has 8 divisors (see below), whose sum is σ = 403240848. Its totient is φ = 67206804.

The previous prime is 201620413. The next prime is 201620423. The reversal of 201620418 is 814026102.

It is an interprime number because it is at equal distance from previous prime (201620413) and next prime (201620423).

It is a sphenic number, since it is the product of 3 distinct primes.

201620418 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (201620413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16801696 + ... + 16801707.

It is an arithmetic number, because the mean of its divisors is an integer number (50405106).

Almost surely, 2^201620418 is an apocalyptic number.

201620418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

201620418 is a wasteful number, since it uses less digits than its factorization.

201620418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33603408.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 201620418 is about 14199.3104762168. The cubic root of 201620418 is about 586.3786783124.

The spelling of 201620418 in words is "two hundred one million, six hundred twenty thousand, four hundred eighteen".