72026424 has 24 divisors (see below), whose sum is σ = 195071760. Its totient is φ = 24008784.

The previous prime is 72026413. The next prime is 72026429. The reversal of 72026424 is 42462027.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72026429) 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, 500112 + ... + 500255.

It is an arithmetic number, because the mean of its divisors is an integer number (8127990).

Almost surely, 2^72026424 is an apocalyptic number.

It is an amenable number.

72026424 is an abundant number, since it is smaller than the sum of its proper divisors (123045336).

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

72026424 is a wasteful number, since it uses less digits than its factorization.

72026424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000379 (or 1000372 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 72026424 is about 8486.8382805377. The cubic root of 72026424 is about 416.0676511033.

The spelling of 72026424 in words is "seventy-two million, twenty-six thousand, four hundred twenty-four".