30049261 has 12 divisors (see below), whose sum is σ = 34099072. Its totient is φ = 26433000.

The previous prime is 30049219. The next prime is 30049273. The reversal of 30049261 is 16294003.

It is not a de Polignac number, because 30049261 - 2¹⁹ = 29524973 is a prime.

It is a super-2 number, since 2×30049261² = 1805916173292242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30049961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255 + ... + 7756.

Almost surely, 2^30049261 is an apocalyptic number.

30049261 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30049261 is the 2452-nd centered decagonal number.

It is an amenable number.

30049261 is a deficient number, since it is larger than the sum of its proper divisors (4049811).

30049261 is a wasteful number, since it uses less digits than its factorization.

30049261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8064 (or 8053 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 30049261 is about 5481.7206240377. The cubic root of 30049261 is about 310.8932302369.

The spelling of 30049261 in words is "thirty million, forty-nine thousand, two hundred sixty-one".