82620044 has 18 divisors (see below), whose sum is σ = 156563820. Its totient is φ = 38132016.

The previous prime is 82620029. The next prime is 82620049. The reversal of 82620044 is 44002628.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 82619995 and 82620022.

It is not an unprimeable number, because it can be changed into a prime (82620049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60434 + ... + 61785.

It is an arithmetic number, because the mean of its divisors is an integer number (8697990).

Almost surely, 2^82620044 is an apocalyptic number.

It is an amenable number.

82620044 is a deficient number, since it is larger than the sum of its proper divisors (73943776).

82620044 is a wasteful number, since it uses less digits than its factorization.

82620044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122249 (or 122234 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 82620044 is about 9089.5568648862. The cubic root of 82620044 is about 435.5404284143.

The spelling of 82620044 in words is "eighty-two million, six hundred twenty thousand, forty-four".