30155436 has 48 divisors (see below), whose sum is σ = 80711680. Its totient is φ = 9726480.

The previous prime is 30155417. The next prime is 30155441. The reversal of 30155436 is 63455103.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1156 + ... + 7851.

Almost surely, 2^30155436 is an apocalyptic number.

30155436 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30155436 is an abundant number, since it is smaller than the sum of its proper divisors (50556244).

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

30155436 is a wasteful number, since it uses less digits than its factorization.

30155436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9051 (or 9043 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 30155436 is about 5491.3965436854. The cubic root of 30155436 is about 311.2589662100.

The spelling of 30155436 in words is "thirty million, one hundred fifty-five thousand, four hundred thirty-six".