655402 has 16 divisors (see below), whose sum is σ = 1108224. Its totient is φ = 288300.

The previous prime is 655399. The next prime is 655439. The reversal of 655402 is 204556.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a zygodrome in base 4.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21127 + ... + 21157.

It is an arithmetic number, because the mean of its divisors is an integer number (69264).

2⁶⁵⁵⁴⁰² is an apocalyptic number.

655402 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

655402 is a deficient number, since it is larger than the sum of its proper divisors (452822).

655402 is an equidigital number, since it uses as much as digits as its factorization.

655402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 655402 is about 809.5690211464. The cubic root of 655402 is about 86.8632192503.

655402 divided by its sum of digits (22) gives a cube (29791 = 31³).

Adding to 655402 its reverse (204556), we get a palindrome (859958).

The spelling of 655402 in words is "six hundred fifty-five thousand, four hundred two".