394262801026704 has 75 divisors (see below), whose sum is σ = 1141112999952057. Its totient is φ = 131420695402944.

The previous prime is 394262801026649. The next prime is 394262801026763. The reversal of 394262801026704 is 407620108262493.

It is a happy number.

The square root of 394262801026704 is 19856052.

It is a perfect power (a square), and thus also a powerful number.

394262801026704 is a `hidden beast` number, since 3 + 9 + 4 + 2 + 628 + 0 + 1 + 0 + 2 + 6 + 7 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 301548087219600 + 92714713807104 = 17365140^2 + 9628848^2 .

It is a super-2 number, since 2×394262801026704² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 714542094 + ... + 715093650.

Almost surely, 2^{394262801026704} is an apocalyptic number.

394262801026704 is the 19856052-nd square number.

It is an amenable number.

394262801026704 is an abundant number, since it is smaller than the sum of its proper divisors (746850198925353).

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

394262801026704 is an frugal number, since it uses more digits than its factorization.

394262801026704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103134 (or 551562 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 394262801026704 in words is "three hundred ninety-four trillion, two hundred sixty-two billion, eight hundred one million, twenty-six thousand, seven hundred four".