390857482 has 4 divisors (see below), whose sum is σ = 586286226. Its totient is φ = 195428740.

The previous prime is 390857471. The next prime is 390857491. The reversal of 390857482 is 284758093.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 311487201 + 79370281 = 17649^2 + 8909^2 .

It is a super-3 number, since 3×390857482³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 97714369 + ... + 97714372.

Almost surely, 2^390857482 is an apocalyptic number.

390857482 is a deficient number, since it is larger than the sum of its proper divisors (195428744).

390857482 is a wasteful number, since it uses less digits than its factorization.

390857482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195428743.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 390857482 is about 19770.1158823109. The cubic root of 390857482 is about 731.1494258446.

The spelling of 390857482 in words is "three hundred ninety million, eight hundred fifty-seven thousand, four hundred eighty-two".