722449533 has 16 divisors (see below), whose sum is σ = 1045538816. Its totient is φ = 441080640.

The previous prime is 722449523. The next prime is 722449547. The reversal of 722449533 is 335944227.

It is not a de Polignac number, because 722449533 - 2¹³ = 722441341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 722449491 and 722449500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722449523) 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, 67978 + ... + 77883.

It is an arithmetic number, because the mean of its divisors is an integer number (65346176).

Almost surely, 2^722449533 is an apocalyptic number.

It is an amenable number.

722449533 is a deficient number, since it is larger than the sum of its proper divisors (323089283).

722449533 is a wasteful number, since it uses less digits than its factorization.

722449533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146004.

The product of its digits is 181440, while the sum is 39.

The square root of 722449533 is about 26878.4213264098. The cubic root of 722449533 is about 897.2962200061.

The spelling of 722449533 in words is "seven hundred twenty-two million, four hundred forty-nine thousand, five hundred thirty-three".