901240 has 16 divisors (see below), whose sum is σ = 2027880. Its totient is φ = 360480.

The previous prime is 901213. The next prime is 901247. The reversal of 901240 is 42109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901247) by changing a digit.

901240 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11226 + ... + 11305.

2⁹⁰¹²⁴⁰ is an apocalyptic number.

It is an amenable number.

901240 is an abundant number, since it is smaller than the sum of its proper divisors (1126640).

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

901240 is a wasteful number, since it uses less digits than its factorization.

901240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22542 (or 22538 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 901240 is about 949.3366104812. The cubic root of 901240 is about 96.5932591061.

Adding to 901240 its reverse (42109), we get a palindrome (943349).

The spelling of 901240 in words is "nine hundred one thousand, two hundred forty".