264215401 has 8 divisors (see below), whose sum is σ = 265785408. Its totient is φ = 262650000.

The previous prime is 264215383. The next prime is 264215407. The reversal of 264215401 is 104512462.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 264215401 - 2¹⁷ = 264084329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264215407) 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, 255756 + ... + 256786.

It is an arithmetic number, because the mean of its divisors is an integer number (33223176).

Almost surely, 2^264215401 is an apocalyptic number.

It is an amenable number.

264215401 is a deficient number, since it is larger than the sum of its proper divisors (1570007).

264215401 is a wasteful number, since it uses less digits than its factorization.

264215401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 264215401 is about 16254.7039653142. The cubic root of 264215401 is about 641.6812898075.

Adding to 264215401 its reverse (104512462), we get a palindrome (368727863).

The spelling of 264215401 in words is "two hundred sixty-four million, two hundred fifteen thousand, four hundred one".