1662879360 has 64 divisors (see below), whose sum is σ = 5300434080. Its totient is φ = 443433984.

The previous prime is 1662879341. The next prime is 1662879367. The reversal of 1662879360 is 639782661.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1662879367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431122 + ... + 434961.

Almost surely, 2^1662879360 is an apocalyptic number.

1662879360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1662879360 is an abundant number, since it is smaller than the sum of its proper divisors (3637554720).

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

1662879360 is an equidigital number, since it uses as much as digits as its factorization.

1662879360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866105 (or 866093 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 1662879360 is about 40778.4178211956. The cubic root of 1662879360 is about 1184.7323506685.

The spelling of 1662879360 in words is "one billion, six hundred sixty-two million, eight hundred seventy-nine thousand, three hundred sixty".