65420330 has 16 divisors (see below), whose sum is σ = 118509480. Its totient is φ = 26000832.

The previous prime is 65420309. The next prime is 65420359. The reversal of 65420330 is 3302456.

It can be written as a sum of positive squares in 4 ways, for example, as 34093921 + 31326409 = 5839^2 + 5597^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65420296 and 65420305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19265 + ... + 22404.

Almost surely, 2^65420330 is an apocalyptic number.

65420330 is a deficient number, since it is larger than the sum of its proper divisors (53089150).

65420330 is a wasteful number, since it uses less digits than its factorization.

65420330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41833.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 65420330 is about 8088.2835014606. The cubic root of 65420330 is about 402.9373972749.

Adding to 65420330 its reverse (3302456), we get a palindrome (68722786).

The spelling of 65420330 in words is "sixty-five million, four hundred twenty thousand, three hundred thirty".