538423428 has 24 divisors (see below), whose sum is σ = 1256728032. Its totient is φ = 179416384.

The previous prime is 538423423. The next prime is 538423433. The reversal of 538423428 is 824324835.

It is an interprime number because it is at equal distance from previous prime (538423423) and next prime (538423433).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (538423421) 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, 48451 + ... + 58517.

It is an arithmetic number, because the mean of its divisors is an integer number (52363668).

Almost surely, 2^538423428 is an apocalyptic number.

It is an amenable number.

538423428 is an abundant number, since it is smaller than the sum of its proper divisors (718304604).

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

538423428 is a wasteful number, since it uses less digits than its factorization.

538423428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14531 (or 14529 counting only the distinct ones).

The product of its digits is 184320, while the sum is 39.

The square root of 538423428 is about 23203.9528529085. The cubic root of 538423428 is about 813.5320171392.

The spelling of 538423428 in words is "five hundred thirty-eight million, four hundred twenty-three thousand, four hundred twenty-eight".