1206471720 has 32 divisors (see below), whose sum is σ = 3619415520. Its totient is φ = 321725760.

The previous prime is 1206471703. The next prime is 1206471829. The reversal of 1206471720 is 271746021.

It is a super-2 number, since 2×1206471720² = 2911148022319516800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5026846 + ... + 5027085.

It is an arithmetic number, because the mean of its divisors is an integer number (113106735).

Almost surely, 2^1206471720 is an apocalyptic number.

1206471720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1206471720 is an abundant number, since it is smaller than the sum of its proper divisors (2412943800).

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

1206471720 is a wasteful number, since it uses less digits than its factorization.

1206471720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10053945 (or 10053941 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 1206471720 is about 34734.3017779255. The cubic root of 1206471720 is about 1064.5654865245.

The spelling of 1206471720 in words is "one billion, two hundred six million, four hundred seventy-one thousand, seven hundred twenty".