241991664 has 20 divisors (see below), whose sum is σ = 625145256. Its totient is φ = 80663872.

The previous prime is 241991653. The next prime is 241991669. The reversal of 241991664 is 466199142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241991669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2520699 + ... + 2520794.

Almost surely, 2^241991664 is an apocalyptic number.

241991664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

241991664 is an abundant number, since it is smaller than the sum of its proper divisors (383153592).

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

241991664 is a wasteful number, since it uses less digits than its factorization.

241991664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5041504 (or 5041498 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 241991664 is about 15556.0812546091. The cubic root of 241991664 is about 623.1608130818.

The spelling of 241991664 in words is "two hundred forty-one million, nine hundred ninety-one thousand, six hundred sixty-four".