10722388 has 6 divisors (see below), whose sum is σ = 18764186. Its totient is φ = 5361192.

The previous prime is 10722353. The next prime is 10722401. The reversal of 10722388 is 88322701.

It can be written as a sum of positive squares in only one way, i.e., 8596624 + 2125764 = 2932^2 + 1458^2 .

It is a super-2 number, since 2×10722388² = 229939208845088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1340295 + ... + 1340302.

Almost surely, 2^10722388 is an apocalyptic number.

It is an amenable number.

10722388 is a deficient number, since it is larger than the sum of its proper divisors (8041798).

10722388 is a wasteful number, since it uses less digits than its factorization.

10722388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680601 (or 2680599 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 10722388 is about 3274.5057642337. The cubic root of 10722388 is about 220.5111256326.

The spelling of 10722388 in words is "ten million, seven hundred twenty-two thousand, three hundred eighty-eight".