1466670720 has 128 divisors (see below), whose sum is σ = 4774775040. Its totient is φ = 382767104.

The previous prime is 1466670691. The next prime is 1466670727. The reversal of 1466670720 is 270766641.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1466670720² = 4302246001810636800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1466670727) 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, 82114 + ... + 98366.

It is an arithmetic number, because the mean of its divisors is an integer number (37302930).

Almost surely, 2^1466670720 is an apocalyptic number.

1466670720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1466670720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2387387520).

1466670720 is an abundant number, since it is smaller than the sum of its proper divisors (3308104320).

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

1466670720 is a wasteful number, since it uses less digits than its factorization.

1466670720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16322 (or 16310 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 1466670720 is about 38297.1372298244. The cubic root of 1466670720 is about 1136.1723272263.

The spelling of 1466670720 in words is "one billion, four hundred sixty-six million, six hundred seventy thousand, seven hundred twenty".