30622420 has 24 divisors (see below), whose sum is σ = 66382848. Its totient is φ = 11853600.

The previous prime is 30622411. The next prime is 30622441. The reversal of 30622420 is 2422603.

It is a congruent number.

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, 24076 + ... + 25315.

It is an arithmetic number, because the mean of its divisors is an integer number (2765952).

Almost surely, 2^30622420 is an apocalyptic number.

It is an amenable number.

30622420 is an abundant number, since it is smaller than the sum of its proper divisors (35760428).

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

30622420 is a wasteful number, since it uses less digits than its factorization.

30622420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49431 (or 49429 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 30622420 is about 5533.7527953460. The cubic root of 30622420 is about 312.8574512423.

The spelling of 30622420 in words is "thirty million, six hundred twenty-two thousand, four hundred twenty".