390743427 has 8 divisors (see below), whose sum is σ = 524111616. Its totient is φ = 258935432.

The previous prime is 390743399. The next prime is 390743429. The reversal of 390743427 is 724347093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 390743427 - 2⁶ = 390743363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (390743429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389463 + ... + 390464.

It is an arithmetic number, because the mean of its divisors is an integer number (65513952).

Almost surely, 2^390743427 is an apocalyptic number.

390743427 is a deficient number, since it is larger than the sum of its proper divisors (133368189).

390743427 is a wasteful number, since it uses less digits than its factorization.

390743427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780097.

The product of its (nonzero) digits is 127008, while the sum is 39.

The square root of 390743427 is about 19767.2311414624. The cubic root of 390743427 is about 731.0783007207.

It can be divided in two parts, 390743 and 427, that added together give a triangular number (391170 = T₈₈₄).

The spelling of 390743427 in words is "three hundred ninety million, seven hundred forty-three thousand, four hundred twenty-seven".