45403749 has 24 divisors (see below), whose sum is σ = 69929600. Its totient is φ = 28304640.

The previous prime is 45403723. The next prime is 45403751. The reversal of 45403749 is 94730454.

It is not a de Polignac number, because 45403749 - 2⁷ = 45403621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45403759) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11829 + ... + 15189.

Almost surely, 2^45403749 is an apocalyptic number.

It is an amenable number.

45403749 is a deficient number, since it is larger than the sum of its proper divisors (24525851).

45403749 is a wasteful number, since it uses less digits than its factorization.

45403749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3465 (or 3462 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 45403749 is about 6738.2304056777. The cubic root of 45403749 is about 356.7499366916.

The spelling of 45403749 in words is "forty-five million, four hundred three thousand, seven hundred forty-nine".