84140480 has 56 divisors (see below), whose sum is σ = 212159088. Its totient is φ = 31674368.

The previous prime is 84140447. The next prime is 84140557. The reversal of 84140480 is 8404148.

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, 2294 + ... + 13173.

Almost surely, 2^84140480 is an apocalyptic number.

84140480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84140480 is an abundant number, since it is smaller than the sum of its proper divisors (128018608).

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

84140480 is a wasteful number, since it uses less digits than its factorization.

84140480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15501 (or 15491 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 84140480 is about 9172.8120006899. The cubic root of 84140480 is about 438.1959188293.

The spelling of 84140480 in words is "eighty-four million, one hundred forty thousand, four hundred eighty".