30266240 has 96 divisors (see below), whose sum is σ = 76946760. Its totient is φ = 11381760.

The previous prime is 30266207. The next prime is 30266251. The reversal of 30266240 is 4266203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230975 + ... + 231105.

Almost surely, 2^30266240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30266240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38473380).

30266240 is an abundant number, since it is smaller than the sum of its proper divisors (46680520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30266240 is a wasteful number, since it uses less digits than its factorization.

30266240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 30266240 is about 5501.4761655396. The cubic root of 30266240 is about 311.6397331843.

The spelling of 30266240 in words is "thirty million, two hundred sixty-six thousand, two hundred forty".