6402455 has 8 divisors (see below), whose sum is σ = 8134992. Its totient is φ = 4820608.

The previous prime is 6402439. The next prime is 6402457. The reversal of 6402455 is 5542046.

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 6402455 - 2⁴ = 6402439 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402457) 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, 37577 + ... + 37746.

It is an arithmetic number, because the mean of its divisors is an integer number (1016874).

Almost surely, 2^6402455 is an apocalyptic number.

6402455 is a deficient number, since it is larger than the sum of its proper divisors (1732537).

6402455 is a wasteful number, since it uses less digits than its factorization.

6402455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75345.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 6402455 is about 2530.3072935910. The cubic root of 6402455 is about 185.6872901026.

The spelling of 6402455 in words is "six million, four hundred two thousand, four hundred fifty-five".