4045394025 has 36 divisors (see below), whose sum is σ = 7627113520. Its totient is φ = 2043986400.

The previous prime is 4045394009. The next prime is 4045394053. The reversal of 4045394025 is 5204935404.

It is a happy number.

It is not a de Polignac number, because 4045394025 - 2⁴ = 4045394009 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 468871 + ... + 477420.

Almost surely, 2^4045394025 is an apocalyptic number.

4045394025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4045394025 is a deficient number, since it is larger than the sum of its proper divisors (3581719495).

4045394025 is a wasteful number, since it uses less digits than its factorization.

4045394025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946326 (or 946318 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 4045394025 is about 63603.4120547003. The cubic root of 4045394025 is about 1593.3833555671.

The spelling of 4045394025 in words is "four billion, forty-five million, three hundred ninety-four thousand, twenty-five".