53434380 has 96 divisors (see below), whose sum is σ = 155232000. Its totient is φ = 13724928.

The previous prime is 53434373. The next prime is 53434391. The reversal of 53434380 is 8343435.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 358546 + ... + 358694.

It is an arithmetic number, because the mean of its divisors is an integer number (1617000).

Almost surely, 2^53434380 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 53434380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77616000).

53434380 is an abundant number, since it is smaller than the sum of its proper divisors (101797620).

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

53434380 is a wasteful number, since it uses less digits than its factorization.

53434380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 53434380 is about 7309.8823519945. The cubic root of 53434380 is about 376.6519829641.

The spelling of 53434380 in words is "fifty-three million, four hundred thirty-four thousand, three hundred eighty".