53729400 has 96 divisors (see below), whose sum is σ = 167958000. Its totient is φ = 14208000.

The previous prime is 53729399. The next prime is 53729407. The reversal of 53729400 is 492735.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53729407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89100 + ... + 89700.

Almost surely, 2^53729400 is an apocalyptic number.

53729400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53729400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83979000).

53729400 is an abundant number, since it is smaller than the sum of its proper divisors (114228600).

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

53729400 is a wasteful number, since it uses less digits than its factorization.

53729400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 53729400 is about 7330.0341063327. The cubic root of 53729400 is about 377.3438969797.

The spelling of 53729400 in words is "fifty-three million, seven hundred twenty-nine thousand, four hundred".