1200400030 has 8 divisors (see below), whose sum is σ = 2160720072. Its totient is φ = 480160008.

The previous prime is 1200400027. The next prime is 1200400037. The reversal of 1200400030 is 300040021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 120040003 = 1200400030 / (1 + 2 + 0 + 0 + 4 + 0 + 0 + 0 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200400037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60019992 + ... + 60020011.

It is an arithmetic number, because the mean of its divisors is an integer number (270090009).

Almost surely, 2^1200400030 is an apocalyptic number.

1200400030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200400030 is a deficient number, since it is larger than the sum of its proper divisors (960320042).

1200400030 is a wasteful number, since it uses less digits than its factorization.

1200400030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120040010.

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

The square root of 1200400030 is about 34646.7896059649. The cubic root of 1200400030 is about 1062.7766380937.

Adding to 1200400030 its reverse (300040021), we get a palindrome (1500440051).

The spelling of 1200400030 in words is "one billion, two hundred million, four hundred thousand, thirty".