901224 has 24 divisors (see below), whose sum is σ = 2441010. Its totient is φ = 300384.

The previous prime is 901213. The next prime is 901247. The reversal of 901224 is 422109.

It can be written as a sum of positive squares in only one way, i.e., 562500 + 338724 = 750^2 + 582^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 901197 and 901206.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6187 + ... + 6330.

2⁹⁰¹²²⁴ is an apocalyptic number.

It is an amenable number.

901224 is an abundant number, since it is smaller than the sum of its proper divisors (1539786).

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

901224 is a wasteful number, since it uses less digits than its factorization.

901224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12529 (or 12522 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 901224 is about 949.3281835066. The cubic root of 901224 is about 96.5926874858.

The spelling of 901224 in words is "nine hundred one thousand, two hundred twenty-four".