1354772772 has 144 divisors (see below), whose sum is σ = 3822698880. Its totient is φ = 402361344.

The previous prime is 1354772767. The next prime is 1354772773. The reversal of 1354772772 is 2772774531.

1354772772 is a `hidden beast` number, since 13 + 547 + 7 + 27 + 72 = 666.

It is not an unprimeable number, because it can be changed into a prime (1354772773) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1533843 + ... + 1534725.

It is an arithmetic number, because the mean of its divisors is an integer number (26546520).

Almost surely, 2^1354772772 is an apocalyptic number.

1354772772 is a gapful number since it is divisible by the number (12) 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 1354772772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1911349440).

1354772772 is an abundant number, since it is smaller than the sum of its proper divisors (2467926108).

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

1354772772 is a wasteful number, since it uses less digits than its factorization.

1354772772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042 (or 1037 counting only the distinct ones).

The product of its digits is 576240, while the sum is 45.

The square root of 1354772772 is about 36807.2380381903. The cubic root of 1354772772 is about 1106.5103652984.

The spelling of 1354772772 in words is "one billion, three hundred fifty-four million, seven hundred seventy-two thousand, seven hundred seventy-two".