30055406 has 4 divisors (see below), whose sum is σ = 45083112. Its totient is φ = 15027702.

The previous prime is 30055393. The next prime is 30055429. The reversal of 30055406 is 60455003.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7513850 + ... + 7513853.

It is an arithmetic number, because the mean of its divisors is an integer number (11270778).

Almost surely, 2^30055406 is an apocalyptic number.

30055406 is a deficient number, since it is larger than the sum of its proper divisors (15027706).

30055406 is a wasteful number, since it uses less digits than its factorization.

30055406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15027705.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 30055406 is about 5482.2810945810. The cubic root of 30055406 is about 310.9144210929.

The spelling of 30055406 in words is "thirty million, fifty-five thousand, four hundred six".