390641100 has 36 divisors (see below), whose sum is σ = 1130255784. Its totient is φ = 104170880.

The previous prime is 390641099. The next prime is 390641101. The reversal of 390641100 is 1146093.

It is an interprime number because it is at equal distance from previous prime (390641099) and next prime (390641101).

It is not an unprimeable number, because it can be changed into a prime (390641101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 650769 + ... + 651368.

It is an arithmetic number, because the mean of its divisors is an integer number (31395994).

Almost surely, 2^390641100 is an apocalyptic number.

390641100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

390641100 is an abundant number, since it is smaller than the sum of its proper divisors (739614684).

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

390641100 is a wasteful number, since it uses less digits than its factorization.

390641100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302154 (or 1302147 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 390641100 is about 19764.6426732183. The cubic root of 390641100 is about 731.0144774415.

Adding to 390641100 its reverse (1146093), we get a palindrome (391787193).

The spelling of 390641100 in words is "three hundred ninety million, six hundred forty-one thousand, one hundred".