4045730 has 16 divisors (see below), whose sum is σ = 7842744. Its totient is φ = 1493760.

The previous prime is 4045721. The next prime is 4045763. The reversal of 4045730 is 375404.

It can be written as a sum of positive squares in 4 ways, for example, as 2588881 + 1456849 = 1609^2 + 1207^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4045696 and 4045705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15431 + ... + 15690.

Almost surely, 2^4045730 is an apocalyptic number.

4045730 is a deficient number, since it is larger than the sum of its proper divisors (3797014).

4045730 is a wasteful number, since it uses less digits than its factorization.

4045730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31141.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 4045730 is about 2011.4000099433. The cubic root of 4045730 is about 159.3427465168.

The spelling of 4045730 in words is "four million, forty-five thousand, seven hundred thirty".