662215426 has 8 divisors (see below), whose sum is σ = 995917824. Its totient is φ = 330242820.

The previous prime is 662215391. The next prime is 662215427. The reversal of 662215426 is 624512266.

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

It is a super-2 number, since 2×662215426² = 877058540864722952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 662215391 and 662215400.

It is not an unprimeable number, because it can be changed into a prime (662215427) 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, 431490 + ... + 433021.

It is an arithmetic number, because the mean of its divisors is an integer number (124489728).

Almost surely, 2^662215426 is an apocalyptic number.

662215426 is a deficient number, since it is larger than the sum of its proper divisors (333702398).

662215426 is a wasteful number, since it uses less digits than its factorization.

662215426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864896.

The product of its digits is 34560, while the sum is 34.

The square root of 662215426 is about 25733.5467046422. The cubic root of 662215426 is about 871.6318629871.

The spelling of 662215426 in words is "six hundred sixty-two million, two hundred fifteen thousand, four hundred twenty-six".