54842640 has 40 divisors (see below), whose sum is σ = 170012928. Its totient is φ = 14624640.

The previous prime is 54842617. The next prime is 54842647. The reversal of 54842640 is 4624845.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (54842647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114016 + ... + 114495.

Almost surely, 2^54842640 is an apocalyptic number.

It is an amenable number.

54842640 is an abundant number, since it is smaller than the sum of its proper divisors (115170288).

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

54842640 is a wasteful number, since it uses less digits than its factorization.

54842640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228527 (or 228521 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 54842640 is about 7405.5816787069. The cubic root of 54842640 is about 379.9322132086.

The spelling of 54842640 in words is "fifty-four million, eight hundred forty-two thousand, six hundred forty".