72420082 has 16 divisors (see below), whose sum is σ = 124555392. Its totient is φ = 30935520.

The previous prime is 72420067. The next prime is 72420097. The reversal of 72420082 is 28002427.

It is an interprime number because it is at equal distance from previous prime (72420067) and next prime (72420097).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3963 + ... + 12670.

It is an arithmetic number, because the mean of its divisors is an integer number (7784712).

Almost surely, 2^72420082 is an apocalyptic number.

72420082 is a deficient number, since it is larger than the sum of its proper divisors (52135310).

72420082 is a wasteful number, since it uses less digits than its factorization.

72420082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16953.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 72420082 is about 8509.9989424206. The cubic root of 72420082 is about 416.8242755929.

The spelling of 72420082 in words is "seventy-two million, four hundred twenty thousand, eighty-two".