620460 has 60 divisors (see below), whose sum is σ = 1951488. Its totient is φ = 165024.

The previous prime is 620441. The next prime is 620461. The reversal of 620460 is 64026.

620460 is a `hidden beast` number, since 620 + 46 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×620460² = 769941223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (620461) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1429 + ... + 1811.

2⁶²⁰⁴⁶⁰ is an apocalyptic number.

620460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (975744).

620460 is an abundant number, since it is smaller than the sum of its proper divisors (1331028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620460 is a wasteful number, since it uses less digits than its factorization.

620460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 620460 is about 787.6928335335. The cubic root of 620460 is about 85.2912729461.

Adding to 620460 its reverse (64026), we get a palindrome (684486).

It can be divided in two parts, 6 and 20460, that multiplied together give a triangular number (122760 = T₄₉₅).

The spelling of 620460 in words is "six hundred twenty thousand, four hundred sixty".