30738340 has 24 divisors (see below), whose sum is σ = 65193912. Its totient is φ = 12172800.

The previous prime is 30738313. The next prime is 30738343. The reversal of 30738340 is 4383703.

It can be written as a sum of positive squares in 4 ways, for example, as 16176484 + 14561856 = 4022^2 + 3816^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30738299 and 30738308.

It is not an unprimeable number, because it can be changed into a prime (30738343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5589 + ... + 9628.

It is an arithmetic number, because the mean of its divisors is an integer number (2716413).

Almost surely, 2^30738340 is an apocalyptic number.

It is an amenable number.

30738340 is an abundant number, since it is smaller than the sum of its proper divisors (34455572).

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

30738340 is a wasteful number, since it uses less digits than its factorization.

30738340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15327 (or 15325 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 30738340 is about 5544.2168067275. The cubic root of 30738340 is about 313.2517241314.

The spelling of 30738340 in words is "thirty million, seven hundred thirty-eight thousand, three hundred forty".