201656460 has 24 divisors (see below), whose sum is σ = 564638256. Its totient is φ = 53775040.

The previous prime is 201656453. The next prime is 201656471. The reversal of 201656460 is 64656102.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1680411 + ... + 1680530.

It is an arithmetic number, because the mean of its divisors is an integer number (23526594).

Almost surely, 2^201656460 is an apocalyptic number.

201656460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201656460 is an abundant number, since it is smaller than the sum of its proper divisors (362981796).

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

201656460 is a wasteful number, since it uses less digits than its factorization.

201656460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360953 (or 3360951 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 201656460 is about 14200.5795656375. The cubic root of 201656460 is about 586.4136169053.

The spelling of 201656460 in words is "two hundred one million, six hundred fifty-six thousand, four hundred sixty".