537999072 has 96 divisors (see below), whose sum is σ = 1587091968. Its totient is φ = 158332416.

The previous prime is 537999071. The next prime is 537999139. The reversal of 537999072 is 270999735.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×537999072² = 578886002945722368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537999071) 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, 19333 + ... + 38075.

It is an arithmetic number, because the mean of its divisors is an integer number (16532208).

Almost surely, 2^537999072 is an apocalyptic number.

537999072 is a gapful number since it is divisible by the number (52) 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 537999072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (793545984).

537999072 is an abundant number, since it is smaller than the sum of its proper divisors (1049092896).

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

537999072 is a wasteful number, since it uses less digits than its factorization.

537999072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18792 (or 18784 counting only the distinct ones).

The product of its (nonzero) digits is 1071630, while the sum is 51.

The square root of 537999072 is about 23194.8070050173. The cubic root of 537999072 is about 813.3182337667.

The spelling of 537999072 in words is "five hundred thirty-seven million, nine hundred ninety-nine thousand, seventy-two".