30497445 has 48 divisors (see below), whose sum is σ = 59626560. Its totient is φ = 14778720.

The previous prime is 30497443. The next prime is 30497447. The reversal of 30497445 is 54479403.

It is an interprime number because it is at equal distance from previous prime (30497443) and next prime (30497447).

It is not a de Polignac number, because 30497445 - 2¹ = 30497443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30497443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15402 + ... + 17268.

It is an arithmetic number, because the mean of its divisors is an integer number (1242220).

Almost surely, 2^30497445 is an apocalyptic number.

It is an amenable number.

30497445 is a deficient number, since it is larger than the sum of its proper divisors (29129115).

30497445 is a wasteful number, since it uses less digits than its factorization.

30497445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903 (or 1886 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 30497445 is about 5522.4491849179. The cubic root of 30497445 is about 312.4312638155.

The spelling of 30497445 in words is "thirty million, four hundred ninety-seven thousand, four hundred forty-five".