390507001 has 8 divisors (see below), whose sum is σ = 401701608. Its totient is φ = 379392000.

The previous prime is 390506999. The next prime is 390507023. The reversal of 390507001 is 100705093.

It can be written as a sum of positive squares in 4 ways, for example, as 5405625 + 385101376 = 2325^2 + 19624^2 .

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

It is a 4-Lehmer number, since φ(390507001) divides (390507001-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 390507001 - 2¹ = 390506999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390507071) by changing a digit.

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, 9880 + ... + 29641.

It is an arithmetic number, because the mean of its divisors is an integer number (50212701).

It is a Poulet number, since it divides 2^390507000-1.

Almost surely, 2^390507001 is an apocalyptic number.

390507001 is the 9881-st decagonal number.

It is an amenable number.

390507001 is a deficient number, since it is larger than the sum of its proper divisors (11194607).

390507001 is a wasteful number, since it uses less digits than its factorization.

390507001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39803.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 390507001 is about 19761.2499857676. The cubic root of 390507001 is about 730.9308204909.

The spelling of 390507001 in words is "three hundred ninety million, five hundred seven thousand, one".