548400434 has 8 divisors (see below), whose sum is σ = 838121580. Its totient is φ = 269026576.

The previous prime is 548400397. The next prime is 548400481. The reversal of 548400434 is 434004845.

It can be written as a sum of positive squares in 2 ways, for example, as 544989025 + 3411409 = 23345^2 + 1847^2 .

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

It is a super-2 number, since 2×548400434² = 601486072022776712, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 548400434.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2586689 + ... + 2586900.

Almost surely, 2^548400434 is an apocalyptic number.

548400434 is a deficient number, since it is larger than the sum of its proper divisors (289721146).

548400434 is a wasteful number, since it uses less digits than its factorization.

548400434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173644.

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 548400434 is about 23417.9511059358. The cubic root of 548400434 is about 818.5262215072.

The spelling of 548400434 in words is "five hundred forty-eight million, four hundred thousand, four hundred thirty-four".