82142450 has 36 divisors (see below), whose sum is σ = 165458718. Its totient is φ = 30326400.

The previous prime is 82142387. The next prime is 82142477. The reversal of 82142450 is 5424128.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 15768841 + 66373609 = 3971^2 + 8147^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3590 + ... + 13310.

Almost surely, 2^82142450 is an apocalyptic number.

82142450 is an abundant number, since it is smaller than the sum of its proper divisors (83316268).

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

82142450 is a wasteful number, since it uses less digits than its factorization.

82142450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9759 (or 9741 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 82142450 is about 9063.2472105752. The cubic root of 82142450 is about 434.6995767746.

Adding to 82142450 its reverse (5424128), we get a palindrome (87566578).

It can be divided in two parts, 8 and 2142450, that multiplied together give a square (17139600 = 4140²).

The spelling of 82142450 in words is "eighty-two million, one hundred forty-two thousand, four hundred fifty".