30351040 has 28 divisors (see below), whose sum is σ = 72274176. Its totient is φ = 12140288.

The previous prime is 30351019. The next prime is 30351043. The reversal of 30351040 is 4015303.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (30351043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47104 + ... + 47743.

Almost surely, 2^30351040 is an apocalyptic number.

It is an amenable number.

30351040 is an abundant number, since it is smaller than the sum of its proper divisors (41923136).

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

30351040 is an equidigital number, since it uses as much as digits as its factorization.

30351040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94864 (or 94854 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 30351040 is about 5509.1777970946. The cubic root of 30351040 is about 311.9305126865.

Adding to 30351040 its reverse (4015303), we get a palindrome (34366343).

The spelling of 30351040 in words is "thirty million, three hundred fifty-one thousand, forty".