368666538 has 16 divisors (see below), whose sum is σ = 776140320. Its totient is φ = 116420976.

The previous prime is 368666537. The next prime is 368666587. The reversal of 368666538 is 835666863.

It is not an unprimeable number, because it can be changed into a prime (368666533) 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, 1616845 + ... + 1617072.

It is an arithmetic number, because the mean of its divisors is an integer number (48508770).

Almost surely, 2^368666538 is an apocalyptic number.

368666538 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

368666538 is an abundant number, since it is smaller than the sum of its proper divisors (407473782).

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

368666538 is a wasteful number, since it uses less digits than its factorization.

368666538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233941.

The product of its digits is 3732480, while the sum is 51.

The square root of 368666538 is about 19200.6910813127. The cubic root of 368666538 is about 717.0419649852.

The spelling of 368666538 in words is "three hundred sixty-eight million, six hundred sixty-six thousand, five hundred thirty-eight".