53470040 has 96 divisors (see below), whose sum is σ = 135127440. Its totient is φ = 18927360.

The previous prime is 53470033. The next prime is 53470051. The reversal of 53470040 is 4007435.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 53469988 and 53470015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 499667 + ... + 499773.

Almost surely, 2^53470040 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 53470040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67563720).

53470040 is an abundant number, since it is smaller than the sum of its proper divisors (81657400).

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

53470040 is a wasteful number, since it uses less digits than its factorization.

53470040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 53470040 is about 7312.3211089229. The cubic root of 53470040 is about 376.7357518969.

Adding to 53470040 its reverse (4007435), we get a palindrome (57477475).

The spelling of 53470040 in words is "fifty-three million, four hundred seventy thousand, forty".