2149417972 has 12 divisors (see below), whose sum is σ = 4050826276. Its totient is φ = 992039040.

The previous prime is 2149417951. The next prime is 2149417973. The reversal of 2149417972 is 2797149412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 810882576 + 1338535396 = 28476^2 + 36586^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149417973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20667429 + ... + 20667532.

Almost surely, 2^2149417972 is an apocalyptic number.

It is an amenable number.

2149417972 is a deficient number, since it is larger than the sum of its proper divisors (1901408304).

2149417972 is a wasteful number, since it uses less digits than its factorization.

2149417972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41334978 (or 41334976 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The square root of 2149417972 is about 46361.8158833323. The cubic root of 2149417972 is about 1290.5464047467.

The spelling of 2149417972 in words is "two billion, one hundred forty-nine million, four hundred seventeen thousand, nine hundred seventy-two".