68440462 has 4 divisors (see below), whose sum is σ = 102660696. Its totient is φ = 34220230.

The previous prime is 68440459. The next prime is 68440469. The reversal of 68440462 is 26404486.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68440469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17110114 + ... + 17110117.

It is an arithmetic number, because the mean of its divisors is an integer number (25665174).

Almost surely, 2^68440462 is an apocalyptic number.

68440462 is a deficient number, since it is larger than the sum of its proper divisors (34220234).

68440462 is a wasteful number, since it uses less digits than its factorization.

68440462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34220233.

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 68440462 is about 8272.8750746037. The cubic root of 68440462 is about 409.0448955684.

The spelling of 68440462 in words is "sixty-eight million, four hundred forty thousand, four hundred sixty-two".