30497305 has 8 divisors (see below), whose sum is σ = 36809352. Its totient is φ = 24256128.

The previous prime is 30497297. The next prime is 30497351. The reversal of 30497305 is 50379403.

It can be written as a sum of positive squares in 4 ways, for example, as 1628176 + 28869129 = 1276^2 + 5373^2 .

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 30497305 - 2³ = 30497297 is a prime.

It is a super-2 number, since 2×30497305² = 1860171224526050, which contains 22 as substring.

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, 16764 + ... + 18493.

It is an arithmetic number, because the mean of its divisors is an integer number (4601169).

Almost surely, 2^30497305 is an apocalyptic number.

It is an amenable number.

30497305 is a deficient number, since it is larger than the sum of its proper divisors (6312047).

30497305 is a wasteful number, since it uses less digits than its factorization.

30497305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35435.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 30497305 is about 5522.4365093679. The cubic root of 30497305 is about 312.4307857378.

The spelling of 30497305 in words is "thirty million, four hundred ninety-seven thousand, three hundred five".