722279042 has 16 divisors (see below), whose sum is σ = 1114761312. Its totient is φ = 350770080.

The previous prime is 722279029. The next prime is 722279059. The reversal of 722279042 is 240972227.

722279042 = 399² + 400² + ... + 1306².

It is a junction number, because it is equal to n+sod(n) for n = 722278993 and 722279011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 788 + ... + 38015.

It is an arithmetic number, because the mean of its divisors is an integer number (69672582).

Almost surely, 2^722279042 is an apocalyptic number.

722279042 is a deficient number, since it is larger than the sum of its proper divisors (392482270).

722279042 is a wasteful number, since it uses less digits than its factorization.

722279042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39073.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 722279042 is about 26875.2496174454. The cubic root of 722279042 is about 897.2256300856.

The spelling of 722279042 in words is "seven hundred twenty-two million, two hundred seventy-nine thousand, forty-two".