1206023040 has 256 divisors, whose sum is σ = 4335897600. Its totient is φ = 316753920.

The previous prime is 1206023023. The next prime is 1206023041. The reversal of 1206023040 is 403206021.

It is a happy number.

1206023040 is a `hidden beast` number, since 1 + 20 + 602 + 3 + 0 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206023041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1226389 + ... + 1227371.

It is an arithmetic number, because the mean of its divisors is an integer number (16937100).

Almost surely, 2^1206023040 is an apocalyptic number.

1206023040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1206023040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2167948800).

1206023040 is an abundant number, since it is smaller than the sum of its proper divisors (3129874560).

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

1206023040 is an equidigital number, since it uses as much as digits as its factorization.

1206023040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1206023040 is about 34727.8424322618. The cubic root of 1206023040 is about 1064.4335015365.

Adding to 1206023040 its reverse (403206021), we get a palindrome (1609229061).

The spelling of 1206023040 in words is "one billion, two hundred six million, twenty-three thousand, forty".