521940106 has 8 divisors (see below), whose sum is σ = 801117504. Its totient is φ = 254900940.

The previous prime is 521940101. The next prime is 521940113. The reversal of 521940106 is 601049125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (521940101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3034450 + ... + 3034621.

It is an arithmetic number, because the mean of its divisors is an integer number (100139688).

Almost surely, 2^521940106 is an apocalyptic number.

521940106 is a deficient number, since it is larger than the sum of its proper divisors (279177398).

521940106 is a wasteful number, since it uses less digits than its factorization.

521940106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6069116.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 521940106 is about 22846.0085354094. The cubic root of 521940106 is about 805.1439918343.

The spelling of 521940106 in words is "five hundred twenty-one million, nine hundred forty thousand, one hundred six".