3902046945 has 16 divisors (see below), whose sum is σ = 6514722432. Its totient is φ = 1990609280.

The previous prime is 3902046943. The next prime is 3902046959. The reversal of 3902046945 is 5496402093.

It is not a de Polignac number, because 3902046945 - 2¹ = 3902046943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3902046897 and 3902046906.

It is not an unprimeable number, because it can be changed into a prime (3902046943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5654796 + ... + 5655485.

It is an arithmetic number, because the mean of its divisors is an integer number (407170152).

Almost surely, 2^3902046945 is an apocalyptic number.

It is an amenable number.

3902046945 is a deficient number, since it is larger than the sum of its proper divisors (2612675487).

3902046945 is a wasteful number, since it uses less digits than its factorization.

3902046945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11310312.

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 3902046945 is about 62466.3665103070. The cubic root of 3902046945 is about 1574.3362544594.

The spelling of 3902046945 in words is "three billion, nine hundred two million, forty-six thousand, nine hundred forty-five".