1628082726 has 64 divisors (see below), whose sum is σ = 3426167808. Its totient is φ = 515294208.

The previous prime is 1628082721. The next prime is 1628082737. The reversal of 1628082726 is 6272808261.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628082721) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1449201 + ... + 1450323.

It is an arithmetic number, because the mean of its divisors is an integer number (53533872).

Almost surely, 2^1628082726 is an apocalyptic number.

1628082726 is an abundant number, since it is smaller than the sum of its proper divisors (1798085082).

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

1628082726 is a wasteful number, since it uses less digits than its factorization.

1628082726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 1628082726 is about 40349.5071345364. The cubic root of 1628082726 is about 1176.4103122470.

The spelling of 1628082726 in words is "one billion, six hundred twenty-eight million, eighty-two thousand, seven hundred twenty-six".