30745413 has 10 divisors (see below), whose sum is σ = 45928454. Its totient is φ = 20496888.

The previous prime is 30745399. The next prime is 30745417. The reversal of 30745413 is 31454703.

It can be written as a sum of positive squares in only one way, i.e., 23357889 + 7387524 = 4833^2 + 2718^2 .

It is not a de Polignac number, because 30745413 - 2⁵ = 30745381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30745417) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 189706 + ... + 189867.

Almost surely, 2^30745413 is an apocalyptic number.

It is an amenable number.

30745413 is a deficient number, since it is larger than the sum of its proper divisors (15183041).

30745413 is an equidigital number, since it uses as much as digits as its factorization.

30745413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379585 (or 379576 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 30745413 is about 5544.8546419180. The cubic root of 30745413 is about 313.2757490627.

The spelling of 30745413 in words is "thirty million, seven hundred forty-five thousand, four hundred thirteen".