537995440 has 40 divisors (see below), whose sum is σ = 1281355488. Its totient is φ = 209948160.

The previous prime is 537995411. The next prime is 537995441. The reversal of 537995440 is 44599735.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (537995441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78732 + ... + 85291.

Almost surely, 2^537995440 is an apocalyptic number.

It is an amenable number.

537995440 is an abundant number, since it is smaller than the sum of its proper divisors (743360048).

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

537995440 is a wasteful number, since it uses less digits than its factorization.

537995440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164077 (or 164071 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 46.

The square root of 537995440 is about 23194.7287114982. The cubic root of 537995440 is about 813.3164035414.

The spelling of 537995440 in words is "five hundred thirty-seven million, nine hundred ninety-five thousand, four hundred forty".