30226440 has 32 divisors (see below), whose sum is σ = 90679680. Its totient is φ = 8060352.

The previous prime is 30226433. The next prime is 30226481. The reversal of 30226440 is 4462203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125824 + ... + 126063.

It is an arithmetic number, because the mean of its divisors is an integer number (2833740).

Almost surely, 2^30226440 is an apocalyptic number.

30226440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30226440 is an abundant number, since it is smaller than the sum of its proper divisors (60453240).

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

30226440 is a wasteful number, since it uses less digits than its factorization.

30226440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251901 (or 251897 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 30226440 is about 5497.8577646207. The cubic root of 30226440 is about 311.5030715430.

Adding to 30226440 its reverse (4462203), we get a palindrome (34688643).

The spelling of 30226440 in words is "thirty million, two hundred twenty-six thousand, four hundred forty".