390921034 has 16 divisors (see below), whose sum is σ = 671060736. Its totient is φ = 167310000.

The previous prime is 390920989. The next prime is 390921049. The reversal of 390921034 is 430129093.

It is a super-3 number, since 3×390921034³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 390920987 and 390921005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8077 + ... + 29104.

It is an arithmetic number, because the mean of its divisors is an integer number (41941296).

Almost surely, 2^390921034 is an apocalyptic number.

390921034 is a deficient number, since it is larger than the sum of its proper divisors (280139702).

390921034 is a wasteful number, since it uses less digits than its factorization.

390921034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37941.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 390921034 is about 19771.7230913241. The cubic root of 390921034 is about 731.1890511063.

The spelling of 390921034 in words is "three hundred ninety million, nine hundred twenty-one thousand, thirty-four".