84272940 has 48 divisors (see below), whose sum is σ = 262184160. Its totient is φ = 22472640.

The previous prime is 84272891. The next prime is 84272941. The reversal of 84272940 is 4927248.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 84272895 and 84272904.

It is not an unprimeable number, because it can be changed into a prime (84272941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77491 + ... + 78570.

It is an arithmetic number, because the mean of its divisors is an integer number (5462170).

Almost surely, 2^84272940 is an apocalyptic number.

It is an amenable number.

84272940 is an abundant number, since it is smaller than the sum of its proper divisors (177911220).

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

84272940 is a wasteful number, since it uses less digits than its factorization.

84272940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156079 (or 156071 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 84272940 is about 9180.0294117176. The cubic root of 84272940 is about 438.4257447874.

The spelling of 84272940 in words is "eighty-four million, two hundred seventy-two thousand, nine hundred forty".