6401415 has 8 divisors (see below), whose sum is σ = 10242288. Its totient is φ = 3414080.

The previous prime is 6401413. The next prime is 6401419. The reversal of 6401415 is 5141046.

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

It is not a de Polignac number, because 6401415 - 2¹ = 6401413 is a prime.

It is a super-2 number, since 2×6401415² = 81956228004450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6401391 and 6401400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6401411) 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, 213366 + ... + 213395.

It is an arithmetic number, because the mean of its divisors is an integer number (1280286).

Almost surely, 2^6401415 is an apocalyptic number.

6401415 is a deficient number, since it is larger than the sum of its proper divisors (3840873).

6401415 is a wasteful number, since it uses less digits than its factorization.

6401415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426769.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 6401415 is about 2530.1017766090. The cubic root of 6401415 is about 185.6772353533.

It can be divided in two parts, 640141 and 5, that added together give a triangular number (640146 = T₁₁₃₁).

The spelling of 6401415 in words is "six million, four hundred one thousand, four hundred fifteen".