54986940 has 36 divisors (see below), whose sum is σ = 166794264. Its totient is φ = 14663136.

The previous prime is 54986933. The next prime is 54986941. The reversal of 54986940 is 4968945.

It is a happy number.

54986940 is a `hidden beast` number, since 549 + 8 + 69 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54986941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152562 + ... + 152921.

It is an arithmetic number, because the mean of its divisors is an integer number (4633174).

Almost surely, 2^54986940 is an apocalyptic number.

It is an amenable number.

54986940 is an abundant number, since it is smaller than the sum of its proper divisors (111807324).

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

54986940 is a wasteful number, since it uses less digits than its factorization.

54986940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305498 (or 305493 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 54986940 is about 7415.3179297991. The cubic root of 54986940 is about 380.2651427484.

The spelling of 54986940 in words is "fifty-four million, nine hundred eighty-six thousand, nine hundred forty".