72026826 has 32 divisors (see below), whose sum is σ = 149257728. Its totient is φ = 23147520.

The previous prime is 72026821. The next prime is 72026839. The reversal of 72026826 is 62862027.

It is not an unprimeable number, because it can be changed into a prime (72026821) 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 15 ways as a sum of consecutive naturals, for example, 65110 + ... + 66206.

It is an arithmetic number, because the mean of its divisors is an integer number (4664304).

Almost surely, 2^72026826 is an apocalyptic number.

72026826 is an abundant number, since it is smaller than the sum of its proper divisors (77230902).

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

72026826 is a wasteful number, since it uses less digits than its factorization.

72026826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 72026826 is about 8486.8619642363. The cubic root of 72026826 is about 416.0684251659.

It can be divided in two parts, 7202 and 6826, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 72026826 in words is "seventy-two million, twenty-six thousand, eight hundred twenty-six".