394222554 has 48 divisors (see below), whose sum is σ = 986618880. Its totient is φ = 112433280.

The previous prime is 394222529. The next prime is 394222579. The reversal of 394222554 is 455222493.

It is an interprime number because it is at equal distance from previous prime (394222529) and next prime (394222579).

It is a super-2 number, since 2×394222554² = 310822844164565832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55194 + ... + 61925.

It is an arithmetic number, because the mean of its divisors is an integer number (20554560).

Almost surely, 2^394222554 is an apocalyptic number.

394222554 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

394222554 is an abundant number, since it is smaller than the sum of its proper divisors (592396326).

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

394222554 is a wasteful number, since it uses less digits than its factorization.

394222554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117155 (or 117152 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 394222554 is about 19855.0385041178. The cubic root of 394222554 is about 733.2417001667.

The spelling of 394222554 in words is "three hundred ninety-four million, two hundred twenty-two thousand, five hundred fifty-four".