53169340 has 48 divisors (see below), whose sum is σ = 131733504. Its totient is φ = 17640000.

The previous prime is 53169313. The next prime is 53169341. The reversal of 53169340 is 4396135.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53169341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1786 + ... + 10465.

It is an arithmetic number, because the mean of its divisors is an integer number (2744448).

Almost surely, 2^53169340 is an apocalyptic number.

It is an amenable number.

53169340 is an abundant number, since it is smaller than the sum of its proper divisors (78564164).

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

53169340 is a wasteful number, since it uses less digits than its factorization.

53169340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12298 (or 12296 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 53169340 is about 7291.7309330501. The cubic root of 53169340 is about 376.0282063494.

The spelling of 53169340 in words is "fifty-three million, one hundred sixty-nine thousand, three hundred forty".