84330540 has 288 divisors, whose sum is σ = 322043904. Its totient is φ = 17418240.

The previous prime is 84330527. The next prime is 84330553. The reversal of 84330540 is 4503348.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (84330527) and next prime (84330553).

It is a super-2 number, since 2×84330540² = 14223279953383200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 663957 + ... + 664083.

It is an arithmetic number, because the mean of its divisors is an integer number (1118208).

Almost surely, 2^84330540 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 84330540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161021952).

84330540 is an abundant number, since it is smaller than the sum of its proper divisors (237713364).

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

84330540 is a wasteful number, since it uses less digits than its factorization.

84330540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 84330540 is about 9183.1661206797. The cubic root of 84330540 is about 438.5256090760.

Adding to 84330540 its reverse (4503348), we get a palindrome (88833888).

The spelling of 84330540 in words is "eighty-four million, three hundred thirty thousand, five hundred forty".