1206072772 has 24 divisors (see below), whose sum is σ = 2176756736. Its totient is φ = 584363808.

The previous prime is 1206072767. The next prime is 1206072773. The reversal of 1206072772 is 2772706021.

It is a super-2 number, since 2×1206072772² = 2909223062719527968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1206072773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5763 + ... + 49450.

Almost surely, 2^1206072772 is an apocalyptic number.

It is an amenable number.

1206072772 is a deficient number, since it is larger than the sum of its proper divisors (970683964).

1206072772 is a wasteful number, since it uses less digits than its factorization.

1206072772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55387 (or 55385 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 1206072772 is about 34728.5584497831. The cubic root of 1206072772 is about 1064.4481324564.

Adding to 1206072772 its reverse (2772706021), we get a palindrome (3978778793).

The spelling of 1206072772 in words is "one billion, two hundred six million, seventy-two thousand, seven hundred seventy-two".