390630045 has 64 divisors (see below), whose sum is σ = 707180544. Its totient is φ = 182688000.

The previous prime is 390630043. The next prime is 390630047. The reversal of 390630045 is 540036093.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (390630043) and next prime (390630047).

It is not a de Polignac number, because 390630045 - 2¹ = 390630043 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 390629994 and 390630021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390630043) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1125562 + ... + 1125908.

It is an arithmetic number, because the mean of its divisors is an integer number (11049696).

Almost surely, 2^390630045 is an apocalyptic number.

It is an amenable number.

390630045 is a deficient number, since it is larger than the sum of its proper divisors (316550499).

390630045 is a wasteful number, since it uses less digits than its factorization.

390630045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 390630045 is about 19764.3630051666. The cubic root of 390630045 is about 731.0075815625.

The spelling of 390630045 in words is "three hundred ninety million, six hundred thirty thousand, forty-five".