906326540 has 72 divisors (see below), whose sum is σ = 2285523072. Its totient is φ = 300706560.

The previous prime is 906326537. The next prime is 906326567. The reversal of 906326540 is 45623609.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 906326540.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15464 + ... + 45296.

It is an arithmetic number, because the mean of its divisors is an integer number (31743376).

Almost surely, 2^906326540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 906326540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1142761536).

906326540 is an abundant number, since it is smaller than the sum of its proper divisors (1379196532).

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

906326540 is a wasteful number, since it uses less digits than its factorization.

906326540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29887 (or 29878 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 906326540 is about 30105.2576803455. The cubic root of 906326540 is about 967.7464032427.

The spelling of 906326540 in words is "nine hundred six million, three hundred twenty-six thousand, five hundred forty".