30493953 has 24 divisors (see below), whose sum is σ = 50676288. Its totient is φ = 17308512.

The previous prime is 30493933. The next prime is 30493963. The reversal of 30493953 is 35939403.

It is a happy number.

It is not a de Polignac number, because 30493953 - 2¹³ = 30485761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30493933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8350 + ... + 11432.

It is an arithmetic number, because the mean of its divisors is an integer number (2111512).

Almost surely, 2^30493953 is an apocalyptic number.

It is an amenable number.

30493953 is a deficient number, since it is larger than the sum of its proper divisors (20182335).

30493953 is a wasteful number, since it uses less digits than its factorization.

30493953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253 (or 3250 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 36.

The square root of 30493953 is about 5522.1330117990. The cubic root of 30493953 is about 312.4193387552.

The spelling of 30493953 in words is "thirty million, four hundred ninety-three thousand, nine hundred fifty-three".