30848438 has 36 divisors (see below), whose sum is σ = 52736460. Its totient is φ = 13493376.

The previous prime is 30848437. The next prime is 30848443. The reversal of 30848438 is 83484803.

It is a super-2 number, since 2×30848438² = 1903252254079688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30848437) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 582020 + ... + 582072.

Almost surely, 2^30848438 is an apocalyptic number.

30848438 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

30848438 is a deficient number, since it is larger than the sum of its proper divisors (21888022).

30848438 is a wasteful number, since it uses less digits than its factorization.

30848438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 30848438 is about 5554.1370166750. The cubic root of 30848438 is about 313.6252781733.

Multiplying 30848438 by its sum of digits (38), we get a square (1172240644 = 34238²).

30848438 divided by its sum of digits (38) gives a square (811801 = 901²).

The spelling of 30848438 in words is "thirty million, eight hundred forty-eight thousand, four hundred thirty-eight".