2149040746 has 4 divisors (see below), whose sum is σ = 3223561122. Its totient is φ = 1074520372.

The previous prime is 2149040717. The next prime is 2149040749. The reversal of 2149040746 is 6470409412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2128438225 + 20602521 = 46135^2 + 4539^2 .

It is a super-2 number, since 2×2149040746² = 9236752255936473032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2149040749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537260185 + ... + 537260188.

Almost surely, 2^2149040746 is an apocalyptic number.

2149040746 is a deficient number, since it is larger than the sum of its proper divisors (1074520376).

2149040746 is a wasteful number, since it uses less digits than its factorization.

2149040746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074520375.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 2149040746 is about 46357.7474215476. The cubic root of 2149040746 is about 1290.4709027353.

The spelling of 2149040746 in words is "two billion, one hundred forty-nine million, forty thousand, seven hundred forty-six".