1966498358 has 32 divisors (see below), whose sum is σ = 3463090848. Its totient is φ = 827481600.

The previous prime is 1966498357. The next prime is 1966498397. The reversal of 1966498358 is 8538946691.

It is a junction number, because it is equal to n+sod(n) for n = 1966498297 and 1966498306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966498357) 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, 20285 + ... + 65912.

It is an arithmetic number, because the mean of its divisors is an integer number (108221589).

Almost surely, 2^1966498358 is an apocalyptic number.

1966498358 is a deficient number, since it is larger than the sum of its proper divisors (1496592490).

1966498358 is a wasteful number, since it uses less digits than its factorization.

1966498358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86288.

The product of its digits is 11197440, while the sum is 59.

The square root of 1966498358 is about 44345.2179834534. The cubic root of 1966498358 is about 1252.8464960877.

The spelling of 1966498358 in words is "one billion, nine hundred sixty-six million, four hundred ninety-eight thousand, three hundred fifty-eight".