538540344 has 24 divisors (see below), whose sum is σ = 1458546960. Its totient is φ = 179513424.

The previous prime is 538540307. The next prime is 538540357. The reversal of 538540344 is 443045835.

It is a tau number, because it is divible by the number of its divisors (24).

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 = 538540299 and 538540308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3739792 + ... + 3739935.

It is an arithmetic number, because the mean of its divisors is an integer number (60772790).

Almost surely, 2^538540344 is an apocalyptic number.

It is an amenable number.

538540344 is an abundant number, since it is smaller than the sum of its proper divisors (920006616).

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

538540344 is a wasteful number, since it uses less digits than its factorization.

538540344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7479739 (or 7479732 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 538540344 is about 23206.4720282942. The cubic root of 538540344 is about 813.5908977033.

The spelling of 538540344 in words is "five hundred thirty-eight million, five hundred forty thousand, three hundred forty-four".