2045633749 has 8 divisors (see below), whose sum is σ = 2198294208. Its totient is φ = 1896565440.

The previous prime is 2045633741. The next prime is 2045633771. The reversal of 2045633749 is 9473365402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2045633749 - 2³ = 2045633741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045633741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 896857 + ... + 899134.

It is an arithmetic number, because the mean of its divisors is an integer number (274786776).

Almost surely, 2^2045633749 is an apocalyptic number.

It is an amenable number.

2045633749 is a deficient number, since it is larger than the sum of its proper divisors (152660459).

2045633749 is a wasteful number, since it uses less digits than its factorization.

2045633749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796075.

The product of its (nonzero) digits is 544320, while the sum is 43.

The square root of 2045633749 is about 45228.6828130115. The cubic root of 2045633749 is about 1269.4315659385.

The spelling of 2045633749 in words is "two billion, forty-five million, six hundred thirty-three thousand, seven hundred forty-nine".