722029090 has 8 divisors (see below), whose sum is σ = 1299652380. Its totient is φ = 288811632.

The previous prime is 722029081. The next prime is 722029093. The reversal of 722029090 is 90920227.

It can be written as a sum of positive squares in 2 ways, for example, as 721620769 + 408321 = 26863^2 + 639^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (722029093) 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 3 ways as a sum of consecutive naturals, for example, 36101445 + ... + 36101464.

Almost surely, 2^722029090 is an apocalyptic number.

722029090 is a deficient number, since it is larger than the sum of its proper divisors (577623290).

722029090 is a wasteful number, since it uses less digits than its factorization.

722029090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72202916.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 722029090 is about 26870.5989884855. The cubic root of 722029090 is about 897.1221201297.

The spelling of 722029090 in words is "seven hundred twenty-two million, twenty-nine thousand, ninety".