395072499 has 8 divisors (see below), whose sum is σ = 528722640. Its totient is φ = 262402016.

The previous prime is 395072411. The next prime is 395072507. The reversal of 395072499 is 994270593.

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 395072499 - 2⁷ = 395072371 is a prime.

It is a super-2 number, since 2×395072499² = 312164558932210002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (395072399) 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, 243972 + ... + 245585.

It is an arithmetic number, because the mean of its divisors is an integer number (66090330).

Almost surely, 2^395072499 is an apocalyptic number.

395072499 is a deficient number, since it is larger than the sum of its proper divisors (133650141).

395072499 is a wasteful number, since it uses less digits than its factorization.

395072499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489829.

The product of its (nonzero) digits is 612360, while the sum is 48.

The square root of 395072499 is about 19876.4307409555. The cubic root of 395072499 is about 733.7682790087.

The spelling of 395072499 in words is "three hundred ninety-five million, seventy-two thousand, four hundred ninety-nine".