662416394 has 4 divisors (see below), whose sum is σ = 993624594. Its totient is φ = 331208196.

The previous prime is 662416369. The next prime is 662416397. The reversal of 662416394 is 493614266.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 613206169 + 49210225 = 24763^2 + 7015^2 .

It is not an unprimeable number, because it can be changed into a prime (662416397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165604097 + ... + 165604100.

Almost surely, 2^662416394 is an apocalyptic number.

662416394 is a deficient number, since it is larger than the sum of its proper divisors (331208200).

662416394 is a wasteful number, since it uses less digits than its factorization.

662416394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331208199.

The product of its digits is 186624, while the sum is 41.

The square root of 662416394 is about 25737.4511947085. The cubic root of 662416394 is about 871.7200278492.

The spelling of 662416394 in words is "six hundred sixty-two million, four hundred sixteen thousand, three hundred ninety-four".