78262480 has 40 divisors (see below), whose sum is σ = 183416832. Its totient is φ = 31054464.

The previous prime is 78262477. The next prime is 78262489. The reversal of 78262480 is 8426287.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×78262480² = 12250031551500800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78262489) 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, 6309 + ... + 14011.

Almost surely, 2^78262480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78262480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91708416).

78262480 is an abundant number, since it is smaller than the sum of its proper divisors (105154352).

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

78262480 is a wasteful number, since it uses less digits than its factorization.

78262480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7843 (or 7837 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 78262480 is about 8846.6083896598. The cubic root of 78262480 is about 427.7445997144.

The spelling of 78262480 in words is "seventy-eight million, two hundred sixty-two thousand, four hundred eighty".