906045240 has 32 divisors (see below), whose sum is σ = 2718136080. Its totient is φ = 241612032.

The previous prime is 906045199. The next prime is 906045247. The reversal of 906045240 is 42540609.

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

It is a junction number, because it is equal to n+sod(n) for n = 906045198 and 906045207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906045247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3775069 + ... + 3775308.

Almost surely, 2^906045240 is an apocalyptic number.

It is an amenable number.

906045240 is an abundant number, since it is smaller than the sum of its proper divisors (1812090840).

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

906045240 is a wasteful number, since it uses less digits than its factorization.

906045240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7550391 (or 7550387 counting only the distinct ones).

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

The square root of 906045240 is about 30100.5853763677. The cubic root of 906045240 is about 967.6462718441.

Adding to 906045240 its reverse (42540609), we get a palindrome (948585849).

The spelling of 906045240 in words is "nine hundred six million, forty-five thousand, two hundred forty".