2149447000 has 64 divisors (see below), whose sum is σ = 5192029440. Its totient is φ = 832032000.

The previous prime is 2149446919. The next prime is 2149447019. The reversal of 2149447000 is 7449412.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

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, 3669 + ... + 65668.

It is an arithmetic number, because the mean of its divisors is an integer number (81125460).

Almost surely, 2^2149447000 is an apocalyptic number.

2149447000 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 2149447000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2596014720).

2149447000 is an abundant number, since it is smaller than the sum of its proper divisors (3042582440).

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

2149447000 is a wasteful number, since it uses less digits than its factorization.

2149447000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69389 (or 69375 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 2149447000 is about 46362.1289416265. The cubic root of 2149447000 is about 1290.5522143523.

The spelling of 2149447000 in words is "two billion, one hundred forty-nine million, four hundred forty-seven thousand".