2011532730 has 32 divisors (see below), whose sum is σ = 4845512448. Its totient is φ = 534427200.

The previous prime is 2011532723. The next prime is 2011532779. The reversal of 2011532730 is 372351102.

It is a super-2 number, since 2×2011532730² = 8092527847722505800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2011532730.

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, 115581 + ... + 131840.

It is an arithmetic number, because the mean of its divisors is an integer number (151422264).

Almost surely, 2^2011532730 is an apocalyptic number.

2011532730 is an abundant number, since it is smaller than the sum of its proper divisors (2833979718).

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

2011532730 is a wasteful number, since it uses less digits than its factorization.

2011532730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247702.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 2011532730 is about 44850.1140466777. The cubic root of 2011532730 is about 1262.3381314546.

Adding to 2011532730 its reverse (372351102), we get a palindrome (2383883832).

The spelling of 2011532730 in words is "two billion, eleven million, five hundred thirty-two thousand, seven hundred thirty".