78291468 has 48 divisors (see below), whose sum is σ = 207940320. Its totient is φ = 25459200.

The previous prime is 78291383. The next prime is 78291469. The reversal of 78291468 is 86419287.

It is a super-3 number, since 3×78291468³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (78291469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4413 + ... + 13268.

It is an arithmetic number, because the mean of its divisors is an integer number (4332090).

Almost surely, 2^78291468 is an apocalyptic number.

It is an amenable number.

78291468 is an abundant number, since it is smaller than the sum of its proper divisors (129648852).

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

78291468 is a wasteful number, since it uses less digits than its factorization.

78291468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17735 (or 17727 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 78291468 is about 8848.2466059666. The cubic root of 78291468 is about 427.7974046254.

The spelling of 78291468 in words is "seventy-eight million, two hundred ninety-one thousand, four hundred sixty-eight".