53474740 has 72 divisors (see below), whose sum is σ = 130042080. Its totient is φ = 18406080.

The previous prime is 53474737. The next prime is 53474749. The reversal of 53474740 is 4747435.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 53474696 and 53474705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53474749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45399 + ... + 46561.

It is an arithmetic number, because the mean of its divisors is an integer number (1806140).

Almost surely, 2^53474740 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 53474740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65021040).

53474740 is an abundant number, since it is smaller than the sum of its proper divisors (76567340).

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

53474740 is a wasteful number, since it uses less digits than its factorization.

53474740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 34.

The square root of 53474740 is about 7312.6424772445. The cubic root of 53474740 is about 376.7467898922.

The spelling of 53474740 in words is "fifty-three million, four hundred seventy-four thousand, seven hundred forty".