307220001 has 8 divisors (see below), whose sum is σ = 446865504. Its totient is φ = 186193920.

The previous prime is 307219999. The next prime is 307220029. The reversal of 307220001 is 100022703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 307220001 - 2¹ = 307219999 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (307220041) 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, 4654816 + ... + 4654881.

It is an arithmetic number, because the mean of its divisors is an integer number (55858188).

Almost surely, 2^307220001 is an apocalyptic number.

It is an amenable number.

307220001 is a deficient number, since it is larger than the sum of its proper divisors (139645503).

307220001 is a wasteful number, since it uses less digits than its factorization.

307220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9309711.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 307220001 is about 17527.6924037364. The cubic root of 307220001 is about 674.7607755840.

Adding to 307220001 its reverse (100022703), we get a palindrome (407242704).

The spelling of 307220001 in words is "three hundred seven million, two hundred twenty thousand, one".