201966456 has 32 divisors (see below), whose sum is σ = 507571200. Its totient is φ = 66968160.

The previous prime is 201966439. The next prime is 201966463. The reversal of 201966456 is 654669102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17446 + ... + 26613.

It is an arithmetic number, because the mean of its divisors is an integer number (15861600).

Almost surely, 2^201966456 is an apocalyptic number.

It is an amenable number.

201966456 is an abundant number, since it is smaller than the sum of its proper divisors (305604744).

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

201966456 is a wasteful number, since it uses less digits than its factorization.

201966456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44259 (or 44255 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 201966456 is about 14211.4902807552. The cubic root of 201966456 is about 586.7139507917.

The spelling of 201966456 in words is "two hundred one million, nine hundred sixty-six thousand, four hundred fifty-six".