68149460 has 24 divisors (see below), whose sum is σ = 149337216. Its totient is φ = 26074400.

The previous prime is 68149441. The next prime is 68149463. The reversal of 68149460 is 6494186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68149463) 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, 73616 + ... + 74535.

It is an arithmetic number, because the mean of its divisors is an integer number (6222384).

Almost surely, 2^68149460 is an apocalyptic number.

It is an amenable number.

68149460 is an abundant number, since it is smaller than the sum of its proper divisors (81187756).

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

68149460 is a wasteful number, since it uses less digits than its factorization.

68149460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148183 (or 148181 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 68149460 is about 8255.2686207052. The cubic root of 68149460 is about 408.4643326277.

The spelling of 68149460 in words is "sixty-eight million, one hundred forty-nine thousand, four hundred sixty".