65423930 has 32 divisors (see below), whose sum is σ = 138354048. Its totient is φ = 21960000.

The previous prime is 65423909. The next prime is 65423933. The reversal of 65423930 is 3932456.

It is not an unprimeable number, because it can be changed into a prime (65423933) 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, 21446 + ... + 24305.

It is an arithmetic number, because the mean of its divisors is an integer number (4323564).

Almost surely, 2^65423930 is an apocalyptic number.

65423930 is an abundant number, since it is smaller than the sum of its proper divisors (72930118).

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

65423930 is a wasteful number, since it uses less digits than its factorization.

65423930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45782.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 65423930 is about 8088.5060425273. The cubic root of 65423930 is about 402.9447881885.

The spelling of 65423930 in words is "sixty-five million, four hundred twenty-three thousand, nine hundred thirty".