548420644 has 6 divisors (see below), whose sum is σ = 959736134. Its totient is φ = 274210320.

The previous prime is 548420573. The next prime is 548420647. The reversal of 548420644 is 446024845.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 380718144 + 167702500 = 19512^2 + 12950^2 .

It is not an unprimeable number, because it can be changed into a prime (548420647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68552577 + ... + 68552584.

Almost surely, 2^548420644 is an apocalyptic number.

It is an amenable number.

548420644 is a deficient number, since it is larger than the sum of its proper divisors (411315490).

548420644 is a wasteful number, since it uses less digits than its factorization.

548420644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137105165 (or 137105163 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 37.

The square root of 548420644 is about 23418.3826085407. The cubic root of 548420644 is about 818.5362763326.

The spelling of 548420644 in words is "five hundred forty-eight million, four hundred twenty thousand, six hundred forty-four".