390105430 has 128 divisors (see below), whose sum is σ = 867355776. Its totient is φ = 124416000.

The previous prime is 390105403. The next prime is 390105433. The reversal of 390105430 is 34501093.

It is a junction number, because it is equal to n+sod(n) for n = 390105395 and 390105404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390105433) 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, 3862380 + ... + 3862480.

It is an arithmetic number, because the mean of its divisors is an integer number (6776217).

Almost surely, 2^390105430 is an apocalyptic number.

390105430 is an abundant number, since it is smaller than the sum of its proper divisors (477250346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390105430 is a wasteful number, since it uses less digits than its factorization.

390105430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 390105430 is about 19751.0868055406. The cubic root of 390105430 is about 730.6801879461.

The spelling of 390105430 in words is "three hundred ninety million, one hundred five thousand, four hundred thirty".