1200040030 has 32 divisors (see below), whose sum is σ = 2613871296. Its totient is φ = 387239424.

The previous prime is 1200040003. The next prime is 1200040031. The reversal of 1200040030 is 300400021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1200039989 and 1200040016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200040031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503029 + ... + 505408.

It is an arithmetic number, because the mean of its divisors is an integer number (81683478).

Almost surely, 2^1200040030 is an apocalyptic number.

1200040030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200040030 is an abundant number, since it is smaller than the sum of its proper divisors (1413831266).

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

1200040030 is a wasteful number, since it uses less digits than its factorization.

1200040030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008468.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1200040030 is about 34641.5939298410. The cubic root of 1200040030 is about 1062.6703852241.

Adding to 1200040030 its reverse (300400021), we get a palindrome (1500440051).

The spelling of 1200040030 in words is "one billion, two hundred million, forty thousand, thirty".