30293690 has 32 divisors (see below), whose sum is σ = 64471680. Its totient is φ = 10027584.

The previous prime is 30293689. The next prime is 30293699. The reversal of 30293690 is 9639203.

It is a super-2 number, since 2×30293690² = 1835415307632200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30293699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5432 + ... + 9491.

It is an arithmetic number, because the mean of its divisors is an integer number (2014740).

Almost surely, 2^30293690 is an apocalyptic number.

30293690 is an abundant number, since it is smaller than the sum of its proper divisors (34177990).

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

30293690 is a wasteful number, since it uses less digits than its factorization.

30293690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14966.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 30293690 is about 5503.9703850947. The cubic root of 30293690 is about 311.7339187169.

The spelling of 30293690 in words is "thirty million, two hundred ninety-three thousand, six hundred ninety".