82451630 has 32 divisors (see below), whose sum is σ = 156487680. Its totient is φ = 31232160.

The previous prime is 82451609. The next prime is 82451639. The reversal of 82451630 is 3615428.

It is a junction number, because it is equal to n+sod(n) for n = 82451593 and 82451602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82451639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11741 + ... + 17399.

It is an arithmetic number, because the mean of its divisors is an integer number (4890240).

Almost surely, 2^82451630 is an apocalyptic number.

82451630 is a deficient number, since it is larger than the sum of its proper divisors (74036050).

82451630 is a wasteful number, since it uses less digits than its factorization.

82451630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5744.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 82451630 is about 9080.2879910276. The cubic root of 82451630 is about 435.2442896136.

The spelling of 82451630 in words is "eighty-two million, four hundred fifty-one thousand, six hundred thirty".