66490342 has 8 divisors (see below), whose sum is σ = 100521216. Its totient is φ = 32983272.

The previous prime is 66490339. The next prime is 66490357. The reversal of 66490342 is 24309466.

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

It is a junction number, because it is equal to n+sod(n) for n = 66490298 and 66490307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130633 + ... + 131140.

It is an arithmetic number, because the mean of its divisors is an integer number (12565152).

Almost surely, 2^66490342 is an apocalyptic number.

66490342 is a deficient number, since it is larger than the sum of its proper divisors (34030874).

66490342 is a wasteful number, since it uses less digits than its factorization.

66490342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261902.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 66490342 is about 8154.1610236737. The cubic root of 66490342 is about 405.1223366645.

The spelling of 66490342 in words is "sixty-six million, four hundred ninety thousand, three hundred forty-two".