2291249404 has 12 divisors (see below), whose sum is σ = 4032088200. Its totient is φ = 1139224208.

The previous prime is 2291249393. The next prime is 2291249407. The reversal of 2291249404 is 4049421922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291249407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1599319 + ... + 1600750.

It is an arithmetic number, because the mean of its divisors is an integer number (336007350).

Almost surely, 2^2291249404 is an apocalyptic number.

It is an amenable number.

2291249404 is a deficient number, since it is larger than the sum of its proper divisors (1740838796).

2291249404 is a wasteful number, since it uses less digits than its factorization.

2291249404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200252 (or 3200250 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 2291249404 is about 47866.9970230011. The cubic root of 2291249404 is about 1318.3299594578.

It can be divided in two parts, 2291 and 249404, that added together give a triangular number (251695 = T₇₀₉).

The spelling of 2291249404 in words is "two billion, two hundred ninety-one million, two hundred forty-nine thousand, four hundred four".