538423704 has 192 divisors, whose sum is σ = 1844082240. Its totient is φ = 138101760.

The previous prime is 538423693. The next prime is 538423709. The reversal of 538423704 is 407324835.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538423709) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 241314 + ... + 243534.

It is an arithmetic number, because the mean of its divisors is an integer number (9604595).

Almost surely, 2^538423704 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 538423704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (922041120).

538423704 is an abundant number, since it is smaller than the sum of its proper divisors (1305658536).

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

538423704 is a wasteful number, since it uses less digits than its factorization.

538423704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290 (or 2283 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 538423704 is about 23203.9588001703. The cubic root of 538423704 is about 813.5321561468.

The spelling of 538423704 in words is "five hundred thirty-eight million, four hundred twenty-three thousand, seven hundred four".