537733440 has 336 divisors, whose sum is σ = 2016069120. Its totient is φ = 131051520.

The previous prime is 537733387. The next prime is 537733453. The reversal of 537733440 is 44337735.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 537733395 and 537733404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1696162 + ... + 1696478.

Almost surely, 2^537733440 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 537733440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1008034560).

537733440 is an abundant number, since it is smaller than the sum of its proper divisors (1478335680).

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

537733440 is a wasteful number, since it uses less digits than its factorization.

537733440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 36.

The square root of 537733440 is about 23189.0801887440. The cubic root of 537733440 is about 813.1843556452.

The spelling of 537733440 in words is "five hundred thirty-seven million, seven hundred thirty-three thousand, four hundred forty".