140664576 has 144 divisors (see below), whose sum is σ = 410811296. Its totient is φ = 42467328.

The previous prime is 140664569. The next prime is 140664583. The reversal of 140664576 is 675466041.

It is an interprime number because it is at equal distance from previous prime (140664569) and next prime (140664583).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728736 + ... + 728928.

Almost surely, 2^140664576 is an apocalyptic number.

140664576 is a gapful number since it is divisible by the number (16) 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 140664576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205405648).

140664576 is an abundant number, since it is smaller than the sum of its proper divisors (270146720).

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

140664576 is a wasteful number, since it uses less digits than its factorization.

140664576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 140664576 is about 11860.2097789204. The cubic root of 140664576 is about 520.0697342377.

The spelling of 140664576 in words is "one hundred forty million, six hundred sixty-four thousand, five hundred seventy-six".