30661274 has 8 divisors (see below), whose sum is σ = 52562208. Its totient is φ = 13140540.

The previous prime is 30661273. The next prime is 30661283. The reversal of 30661274 is 47216603.

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

It is a super-2 number, since 2×30661274² = 1880227446606152, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30661273) 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, 1095032 + ... + 1095059.

It is an arithmetic number, because the mean of its divisors is an integer number (6570276).

Almost surely, 2^30661274 is an apocalyptic number.

30661274 is a deficient number, since it is larger than the sum of its proper divisors (21900934).

30661274 is a wasteful number, since it uses less digits than its factorization.

30661274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190100.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 30661274 is about 5537.2623199556. The cubic root of 30661274 is about 312.9897140955.

Adding to 30661274 its reverse (47216603), we get a palindrome (77877877).

The spelling of 30661274 in words is "thirty million, six hundred sixty-one thousand, two hundred seventy-four".