390127890 has 16 divisors (see below), whose sum is σ = 936307008. Its totient is φ = 104034096.

The previous prime is 390127877. The next prime is 390127891. The reversal of 390127890 is 98721093.

It is not an unprimeable number, because it can be changed into a prime (390127891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6502102 + ... + 6502161.

It is an arithmetic number, because the mean of its divisors is an integer number (58519188).

Almost surely, 2^390127890 is an apocalyptic number.

390127890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

390127890 is an abundant number, since it is smaller than the sum of its proper divisors (546179118).

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

390127890 is a wasteful number, since it uses less digits than its factorization.

390127890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13004273.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 390127890 is about 19751.6553736643. The cubic root of 390127890 is about 730.6942104477.

The spelling of 390127890 in words is "three hundred ninety million, one hundred twenty-seven thousand, eight hundred ninety".