30487741 has 4 divisors (see below), whose sum is σ = 31311772. Its totient is φ = 29663712.

The previous prime is 30487733. The next prime is 30487753. The reversal of 30487741 is 14778403.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21427641 + 9060100 = 4629^2 + 3010^2 .

It is a cyclic number.

It is not a de Polignac number, because 30487741 - 2³ = 30487733 is a prime.

It is a super-4 number, since 4×30487741⁴ (a number of 31 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30487697 and 30487706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30487711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411960 + ... + 412033.

It is an arithmetic number, because the mean of its divisors is an integer number (7827943).

Almost surely, 2^30487741 is an apocalyptic number.

It is an amenable number.

30487741 is a deficient number, since it is larger than the sum of its proper divisors (824031).

30487741 is an equidigital number, since it uses as much as digits as its factorization.

30487741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824030.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 30487741 is about 5521.5705193360. The cubic root of 30487741 is about 312.3981227376.

The spelling of 30487741 in words is "thirty million, four hundred eighty-seven thousand, seven hundred forty-one".