4001915 has 8 divisors (see below), whose sum is σ = 4870368. Its totient is φ = 3156160.

The previous prime is 4001891. The next prime is 4001939. The reversal of 4001915 is 5191004.

It is an interprime number because it is at equal distance from previous prime (4001891) and next prime (4001939).

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

It is a de Polignac number, because none of the positive numbers 2^k-4001915 is a prime.

It is a Duffinian number.

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, 5282 + ... + 5991.

It is an arithmetic number, because the mean of its divisors is an integer number (608796).

Almost surely, 2^4001915 is an apocalyptic number.

4001915 is a deficient number, since it is larger than the sum of its proper divisors (868453).

4001915 is a wasteful number, since it uses less digits than its factorization.

4001915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11349.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 4001915 is about 2000.4786927133. The cubic root of 4001915 is about 158.7654334304.

Adding to 4001915 its reverse (5191004), we get a palindrome (9192919).

The spelling of 4001915 in words is "four million, one thousand, nine hundred fifteen".