426640016 has 20 divisors (see below), whose sum is σ = 901762224. Its totient is φ = 193927200.

The previous prime is 426640013. The next prime is 426640021. The reversal of 426640016 is 610046624.

It is not an unprimeable number, because it can be changed into a prime (426640013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1211870 + ... + 1212221.

Almost surely, 2^426640016 is an apocalyptic number.

It is an amenable number.

426640016 is an abundant number, since it is smaller than the sum of its proper divisors (475122208).

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

426640016 is a wasteful number, since it uses less digits than its factorization.

426640016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2424110 (or 2424104 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 426640016 is about 20655.2660597727. The cubic root of 426640016 is about 752.8131482550.

The spelling of 426640016 in words is "four hundred twenty-six million, six hundred forty thousand, sixteen".