538978610 has 16 divisors (see below), whose sum is σ = 990804096. Its totient is φ = 211004208.

The previous prime is 538978577. The next prime is 538978613. The reversal of 538978610 is 16879835.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (538978613) 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, 572912 + ... + 573851.

It is an arithmetic number, because the mean of its divisors is an integer number (61925256).

Almost surely, 2^538978610 is an apocalyptic number.

538978610 is a deficient number, since it is larger than the sum of its proper divisors (451825486).

538978610 is a wasteful number, since it uses less digits than its factorization.

538978610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146817.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 538978610 is about 23215.9128616559. The cubic root of 538978610 is about 813.8115388929.

The spelling of 538978610 in words is "five hundred thirty-eight million, nine hundred seventy-eight thousand, six hundred ten".