30540730 has 16 divisors (see below), whose sum is σ = 59971104. Its totient is φ = 11105680.

The previous prime is 30540703. The next prime is 30540737. The reversal of 30540730 is 3704503.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (30540737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138712 + ... + 138931.

It is an arithmetic number, because the mean of its divisors is an integer number (3748194).

Almost surely, 2^30540730 is an apocalyptic number.

30540730 is a deficient number, since it is larger than the sum of its proper divisors (29430374).

30540730 is a wasteful number, since it uses less digits than its factorization.

30540730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277661.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 30540730 is about 5526.3667992633. The cubic root of 30540730 is about 312.5790050912.

The spelling of 30540730 in words is "thirty million, five hundred forty thousand, seven hundred thirty".