223650540 has 36 divisors (see below), whose sum is σ = 678407184. Its totient is φ = 59640096.

The previous prime is 223650529. The next prime is 223650547. The reversal of 223650540 is 45056322.

223650540 is a `hidden beast` number, since 2 + 2 + 3 + 650 + 5 + 4 + 0 = 666.

223650540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (223650547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 621072 + ... + 621431.

It is an arithmetic number, because the mean of its divisors is an integer number (18844644).

Almost surely, 2^223650540 is an apocalyptic number.

223650540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223650540 is an abundant number, since it is smaller than the sum of its proper divisors (454756644).

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

223650540 is a wasteful number, since it uses less digits than its factorization.

223650540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242518 (or 1242513 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 223650540 is about 14954.9503509707. The cubic root of 223650540 is about 607.0018066671.

The spelling of 223650540 in words is "two hundred twenty-three million, six hundred fifty thousand, five hundred forty".