30406985 has 8 divisors (see below), whose sum is σ = 41701056. Its totient is φ = 20850480.

The previous prime is 30406969. The next prime is 30406991. The reversal of 30406985 is 58960403.

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

It is not a de Polignac number, because 30406985 - 2⁴ = 30406969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 868771 = 30406985 / (3 + 0 + 4 + 0 + 6 + 9 + 8 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434351 + ... + 434420.

It is an arithmetic number, because the mean of its divisors is an integer number (5212632).

Almost surely, 2^30406985 is an apocalyptic number.

30406985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30406985 is a deficient number, since it is larger than the sum of its proper divisors (11294071).

30406985 is an equidigital number, since it uses as much as digits as its factorization.

30406985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868783.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 30406985 is about 5514.2528959053. The cubic root of 30406985 is about 312.1220518810.

The spelling of 30406985 in words is "thirty million, four hundred six thousand, nine hundred eighty-five".