1466666740 has 48 divisors (see below), whose sum is σ = 3840004224. Its totient is φ = 457142400.

The previous prime is 1466666683. The next prime is 1466666767. The reversal of 1466666740 is 476666641.

It is a happy number.

It is a super-2 number, since 2×1466666740² = 4302222652444455200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 474651 + ... + 477730.

It is an arithmetic number, because the mean of its divisors is an integer number (80000088).

Almost surely, 2^1466666740 is an apocalyptic number.

1466666740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1466666740 is an abundant number, since it is smaller than the sum of its proper divisors (2373337484).

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

1466666740 is a wasteful number, since it uses less digits than its factorization.

1466666740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952408 (or 952406 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 46.

The square root of 1466666740 is about 38297.0852676806. The cubic root of 1466666740 is about 1136.1712995087.

Subtracting from 1466666740 its reverse (476666641), we obtain a palindrome (990000099).

It can be divided in two parts, 14666 and 66740, that added together give a triangular number (81406 = T₄₀₃).

The spelling of 1466666740 in words is "one billion, four hundred sixty-six million, six hundred sixty-six thousand, seven hundred forty".