53683740 has 144 divisors (see below), whose sum is σ = 187125120. Its totient is φ = 12320640.

The previous prime is 53683717. The next prime is 53683757. The reversal of 53683740 is 4738635.

It is a happy number.

53683740 is a `hidden beast` number, since 536 + 83 + 7 + 40 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 53683695 and 53683704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36907 + ... + 38333.

It is an arithmetic number, because the mean of its divisors is an integer number (1299480).

Almost surely, 2^53683740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53683740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93562560).

53683740 is an abundant number, since it is smaller than the sum of its proper divisors (133441380).

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

53683740 is a wasteful number, since it uses less digits than its factorization.

53683740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472 (or 1467 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 53683740 is about 7326.9188612950. The cubic root of 53683740 is about 377.2369759689.

The spelling of 53683740 in words is "fifty-three million, six hundred eighty-three thousand, seven hundred forty".