2207749000 has 64 divisors (see below), whose sum is σ = 5286378240. Its totient is φ = 862545600.

The previous prime is 2207748971. The next prime is 2207749009. The reversal of 2207749000 is 9477022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2207749009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17329 + ... + 68671.

It is an arithmetic number, because the mean of its divisors is an integer number (82599660).

Almost surely, 2^2207749000 is an apocalyptic number.

2207749000 is a gapful number since it is divisible by the number (20) 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 2207749000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2643189120).

2207749000 is an abundant number, since it is smaller than the sum of its proper divisors (3078629240).

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

2207749000 is a wasteful number, since it uses less digits than its factorization.

2207749000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51407 (or 51393 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 2207749000 is about 46986.6896046104. The cubic root of 2207749000 is about 1302.1166700940.

The spelling of 2207749000 in words is "two billion, two hundred seven million, seven hundred forty-nine thousand".