30248040 has 64 divisors (see below), whose sum is σ = 91108800. Its totient is φ = 8033792.

The previous prime is 30248003. The next prime is 30248047. The reversal of 30248040 is 4084203.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30247998 and 30248016.

It is not an unprimeable number, because it can be changed into a prime (30248047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52876 + ... + 53444.

It is an arithmetic number, because the mean of its divisors is an integer number (1423575).

Almost surely, 2^30248040 is an apocalyptic number.

30248040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30248040 is an abundant number, since it is smaller than the sum of its proper divisors (60860760).

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

30248040 is a wasteful number, since it uses less digits than its factorization.

30248040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026 (or 1022 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 30248040 is about 5499.8218152955. The cubic root of 30248040 is about 311.5772545458.

The spelling of 30248040 in words is "thirty million, two hundred forty-eight thousand, forty".