54387340 has 24 divisors (see below), whose sum is σ = 130529952. Its totient is φ = 18647040.

The previous prime is 54387337. The next prime is 54387343. The reversal of 54387340 is 4378345.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (54387337) and next prime (54387343).

It is a junction number, because it is equal to n+sod(n) for n = 54387296 and 54387305.

It is not an unprimeable number, because it can be changed into a prime (54387343) 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, 194101 + ... + 194380.

It is an arithmetic number, because the mean of its divisors is an integer number (5438748).

Almost surely, 2^54387340 is an apocalyptic number.

It is an amenable number.

54387340 is an abundant number, since it is smaller than the sum of its proper divisors (76142612).

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

54387340 is a wasteful number, since it uses less digits than its factorization.

54387340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388497 (or 388495 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 54387340 is about 7374.7772847727. Note that the first 3 decimals coincide. The cubic root of 54387340 is about 378.8778994178.

The spelling of 54387340 in words is "fifty-four million, three hundred eighty-seven thousand, three hundred forty".