900534240 has 96 divisors (see below), whose sum is σ = 3151884960. Its totient is φ = 240141312.

The previous prime is 900534227. The next prime is 900534263. The reversal of 900534240 is 42435009.

900534240 is a `hidden beast` number, since 90 + 0 + 534 + 2 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99909 + ... + 108548.

It is an arithmetic number, because the mean of its divisors is an integer number (32832135).

Almost surely, 2^900534240 is an apocalyptic number.

900534240 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

900534240 is an abundant number, since it is smaller than the sum of its proper divisors (2251350720).

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

900534240 is a wasteful number, since it uses less digits than its factorization.

900534240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208481 (or 208467 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 900534240 is about 30008.9026790384. The cubic root of 900534240 is about 965.6803849842.

Adding to 900534240 its reverse (42435009), we get a palindrome (942969249).

The spelling of 900534240 in words is "nine hundred million, five hundred thirty-four thousand, two hundred forty".