30747026 has 8 divisors (see below), whose sum is σ = 46577484. Its totient is φ = 15221200.

The previous prime is 30747019. The next prime is 30747029. The reversal of 30747026 is 62074703.

It is a Cunningham number, because it is equal to 5545²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 30747025 + 1 = 5545^2 + 1^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30747026.

It is not an unprimeable number, because it can be changed into a prime (30747029) 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, 75905 + ... + 76308.

Almost surely, 2^30747026 is an apocalyptic number.

30747026 is a deficient number, since it is larger than the sum of its proper divisors (15830458).

30747026 is a wasteful number, since it uses less digits than its factorization.

30747026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152316.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 30747026 is about 5545.0000901713. Note that the first 4 decimals coincide. The cubic root of 30747026 is about 313.2812274403.

The spelling of 30747026 in words is "thirty million, seven hundred forty-seven thousand, twenty-six".