78262768 has 40 divisors (see below), whose sum is σ = 158333616. Its totient is φ = 37440000.

The previous prime is 78262739. The next prime is 78262787. The reversal of 78262768 is 86726287.

It is a super-2 number, since 2×78262768² = 12250121710043648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33643 + ... + 35893.

Almost surely, 2^78262768 is an apocalyptic number.

It is an amenable number.

78262768 is an abundant number, since it is smaller than the sum of its proper divisors (80070848).

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

78262768 is a wasteful number, since it uses less digits than its factorization.

78262768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353 (or 2347 counting only the distinct ones).

The product of its digits is 451584, while the sum is 46.

The square root of 78262768 is about 8846.6246670694. The cubic root of 78262768 is about 427.7451244030.

The spelling of 78262768 in words is "seventy-eight million, two hundred sixty-two thousand, seven hundred sixty-eight".