53740340 has 24 divisors (see below), whose sum is σ = 115609032. Its totient is φ = 20971520.

The previous prime is 53740339. The next prime is 53740369. The reversal of 53740340 is 4304735.

It can be written as a sum of positive squares in 4 ways, for example, as 9278116 + 44462224 = 3046^2 + 6668^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31949 + ... + 33588.

It is an arithmetic number, because the mean of its divisors is an integer number (4817043).

Almost surely, 2^53740340 is an apocalyptic number.

It is an amenable number.

53740340 is an abundant number, since it is smaller than the sum of its proper divisors (61868692).

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

53740340 is a wasteful number, since it uses less digits than its factorization.

53740340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65587 (or 65585 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 53740340 is about 7330.7803131727. The cubic root of 53740340 is about 377.3695059391.

The spelling of 53740340 in words is "fifty-three million, seven hundred forty thousand, three hundred forty".