620040215 has 8 divisors (see below), whose sum is σ = 759879360. Its totient is φ = 485478112.

The previous prime is 620040151. The next prime is 620040227. The reversal of 620040215 is 512040026.

It is a happy number.

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 620040215 - 2⁶ = 620040151 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1319000 + ... + 1319469.

It is an arithmetic number, because the mean of its divisors is an integer number (94984920).

Almost surely, 2^620040215 is an apocalyptic number.

620040215 is a deficient number, since it is larger than the sum of its proper divisors (139839145).

620040215 is a wasteful number, since it uses less digits than its factorization.

620040215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638521.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 620040215 is about 24900.6067195159. The cubic root of 620040215 is about 852.7203341698.

The spelling of 620040215 in words is "six hundred twenty million, forty thousand, two hundred fifteen".