30122470 has 48 divisors (see below), whose sum is σ = 65869920. Its totient is φ = 9713664.

The previous prime is 30122461. The next prime is 30122507. The reversal of 30122470 is 7422103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19486 + ... + 20974.

It is an arithmetic number, because the mean of its divisors is an integer number (1372290).

Almost surely, 2^30122470 is an apocalyptic number.

30122470 is an abundant number, since it is smaller than the sum of its proper divisors (35747450).

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

30122470 is a wasteful number, since it uses less digits than its factorization.

30122470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537 (or 1520 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 30122470 is about 5488.3941185013. The cubic root of 30122470 is about 311.1455018200.

Adding to 30122470 its reverse (7422103), we get a palindrome (37544573).

It can be divided in two parts, 30 and 122470, that added together give a square (122500 = 350²).

The spelling of 30122470 in words is "thirty million, one hundred twenty-two thousand, four hundred seventy".