540022788 has 120 divisors (see below), whose sum is σ = 1496276320. Its totient is φ = 170533512.

The previous prime is 540022783. The next prime is 540022789. The reversal of 540022788 is 887220045.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a super-2 number, since 2×540022788² = 583249223118585888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (540022783) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 28422243 + ... + 28422261.

Almost surely, 2^540022788 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 540022788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748138160).

540022788 is an abundant number, since it is smaller than the sum of its proper divisors (956253532).

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

540022788 is an frugal number, since it uses more digits than its factorization.

540022788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 24 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 540022788 is about 23238.3903917634. The cubic root of 540022788 is about 814.3367396597.

The spelling of 540022788 in words is "five hundred forty million, twenty-two thousand, seven hundred eighty-eight".