2249779972 has 48 divisors (see below), whose sum is σ = 4350108672. Its totient is φ = 1009579680.

The previous prime is 2249779969. The next prime is 2249779993. The reversal of 2249779972 is 2799779422.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2115913 + ... + 2116975.

It is an arithmetic number, because the mean of its divisors is an integer number (90627264).

Almost surely, 2^2249779972 is an apocalyptic number.

2249779972 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2249779972 is a deficient number, since it is larger than the sum of its proper divisors (2100328700).

2249779972 is a wasteful number, since it uses less digits than its factorization.

2249779972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648 (or 1646 counting only the distinct ones).

The product of its digits is 8001504, while the sum is 58.

The square root of 2249779972 is about 47431.8455470584. The cubic root of 2249779972 is about 1310.3279818982.

The spelling of 2249779972 in words is "two billion, two hundred forty-nine million, seven hundred seventy-nine thousand, nine hundred seventy-two".