30415340 has 24 divisors (see below), whose sum is σ = 65933952. Its totient is φ = 11773440.

The previous prime is 30415339. The next prime is 30415349. The reversal of 30415340 is 4351403.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (30415349) 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, 23909 + ... + 25148.

It is an arithmetic number, because the mean of its divisors is an integer number (2747248).

Almost surely, 2^30415340 is an apocalyptic number.

It is an amenable number.

30415340 is an abundant number, since it is smaller than the sum of its proper divisors (35518612).

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

30415340 is a wasteful number, since it uses less digits than its factorization.

30415340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49097 (or 49095 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30415340 is about 5515.0104261008. The cubic root of 30415340 is about 312.1506367706.

Adding to 30415340 its reverse (4351403), we get a palindrome (34766743).

The spelling of 30415340 in words is "thirty million, four hundred fifteen thousand, three hundred forty".