82734420 has 24 divisors (see below), whose sum is σ = 231656544. Its totient is φ = 22062496.

The previous prime is 82734413. The next prime is 82734467. The reversal of 82734420 is 2443728.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 689394 + ... + 689513.

It is an arithmetic number, because the mean of its divisors is an integer number (9652356).

Almost surely, 2^82734420 is an apocalyptic number.

It is an amenable number.

82734420 is an abundant number, since it is smaller than the sum of its proper divisors (148922124).

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

82734420 is a wasteful number, since it uses less digits than its factorization.

82734420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378919 (or 1378917 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 82734420 is about 9095.8463047701. The cubic root of 82734420 is about 435.7413175279.

The spelling of 82734420 in words is "eighty-two million, seven hundred thirty-four thousand, four hundred twenty".