1206342972 has 18 divisors (see below), whose sum is σ = 3049367048. Its totient is φ = 402114312.

The previous prime is 1206342961. The next prime is 1206342989. The reversal of 1206342972 is 2792436021.

1206342972 is a `hidden beast` number, since 12 + 0 + 634 + 2 + 9 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-4 number, since 4×1206342972⁴ (a number of 37 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 33509527 = 1206342972 / (1 + 2 + 0 + 6 + 3 + 4 + 2 + 9 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16754728 + ... + 16754799.

Almost surely, 2^1206342972 is an apocalyptic number.

1206342972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1206342972 is an abundant number, since it is smaller than the sum of its proper divisors (1843024076).

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

1206342972 is a wasteful number, since it uses less digits than its factorization.

1206342972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33509537 (or 33509532 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 1206342972 is about 34732.4484020347. The cubic root of 1206342972 is about 1064.5276169939.

Adding to 1206342972 its reverse (2792436021), we get a palindrome (3998778993).

The spelling of 1206342972 in words is "one billion, two hundred six million, three hundred forty-two thousand, nine hundred seventy-two".