30399761 has 8 divisors (see below), whose sum is σ = 34842240. Its totient is φ = 25982208.

The previous prime is 30399739. The next prime is 30399763. The reversal of 30399761 is 16799303.

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

It is not a de Polignac number, because 30399761 - 2⁶ = 30399697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30399763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3536 + ... + 8561.

It is an arithmetic number, because the mean of its divisors is an integer number (4355280).

Almost surely, 2^30399761 is an apocalyptic number.

It is an amenable number.

30399761 is a deficient number, since it is larger than the sum of its proper divisors (4442479).

30399761 is a wasteful number, since it uses less digits than its factorization.

30399761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12463.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 30399761 is about 5513.5978271905. The cubic root of 30399761 is about 312.0973322506.

The spelling of 30399761 in words is "thirty million, three hundred ninety-nine thousand, seven hundred sixty-one".