54397040 has 40 divisors (see below), whose sum is σ = 130839840. Its totient is φ = 21007616.

The previous prime is 54397039. The next prime is 54397061. The reversal of 54397040 is 4079345.

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

It is a junction number, because it is equal to n+sod(n) for n = 54396988 and 54397006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9404 + ... + 14043.

It is an arithmetic number, because the mean of its divisors is an integer number (3270996).

Almost surely, 2^54397040 is an apocalyptic number.

It is an amenable number.

54397040 is an abundant number, since it is smaller than the sum of its proper divisors (76442800).

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

54397040 is a wasteful number, since it uses less digits than its factorization.

54397040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23489 (or 23483 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 54397040 is about 7375.4349024312. The cubic root of 54397040 is about 378.9004224115.

The spelling of 54397040 in words is "fifty-four million, three hundred ninety-seven thousand, forty".