722477442 has 16 divisors (see below), whose sum is σ = 1459262592. Its totient is φ = 238441200.

The previous prime is 722477417. The next prime is 722477447. The reversal of 722477442 is 244774227.

It is a self number, because there is not a number n which added to its sum of digits gives 722477442.

It is not an unprimeable number, because it can be changed into a prime (722477447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595498 + ... + 596709.

It is an arithmetic number, because the mean of its divisors is an integer number (91203912).

Almost surely, 2^722477442 is an apocalyptic number.

722477442 is an abundant number, since it is smaller than the sum of its proper divisors (736785150).

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

722477442 is a wasteful number, since it uses less digits than its factorization.

722477442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192313.

The product of its digits is 175616, while the sum is 39.

The square root of 722477442 is about 26878.9404925120. The cubic root of 722477442 is about 897.3077743623.

It can be divided in two parts, 7224 and 77442, that added together give a triangular number (84666 = T₄₁₁).

The spelling of 722477442 in words is "seven hundred twenty-two million, four hundred seventy-seven thousand, four hundred forty-two".