722147394 has 8 divisors (see below), whose sum is σ = 1444294800. Its totient is φ = 240715796.

The previous prime is 722147381. The next prime is 722147401. The reversal of 722147394 is 493741227.

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

722147394 is an admirable 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 in 3 ways as a sum of consecutive naturals, for example, 60178944 + ... + 60178955.

It is an arithmetic number, because the mean of its divisors is an integer number (180536850).

Almost surely, 2^722147394 is an apocalyptic number.

722147394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

722147394 is a wasteful number, since it uses less digits than its factorization.

722147394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120357904.

The product of its digits is 84672, while the sum is 39.

The square root of 722147394 is about 26872.8002634634. The cubic root of 722147394 is about 897.1711150805.

It can be divided in two parts, 7221 and 47394, that added together give a triangular number (54615 = T₃₃₀).

The spelling of 722147394 in words is "seven hundred twenty-two million, one hundred forty-seven thousand, three hundred ninety-four".