620040319 has 16 divisors (see below), whose sum is σ = 663839200. Its totient is φ = 577414656.

The previous prime is 620040301. The next prime is 620040341. The reversal of 620040319 is 913040026.

It is a cyclic number.

It is not a de Polignac number, because 620040319 - 2¹⁷ = 619909247 is a prime.

It is a super-2 number, since 2×620040319² = 768899994371243522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 620040293 and 620040302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620040359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 566737 + ... + 567829.

It is an arithmetic number, because the mean of its divisors is an integer number (41489950).

Almost surely, 2^620040319 is an apocalyptic number.

620040319 is a deficient number, since it is larger than the sum of its proper divisors (43798881).

620040319 is a wasteful number, since it uses less digits than its factorization.

620040319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 620040319 is about 24900.6088078183. The cubic root of 620040319 is about 852.7203818457.

The spelling of 620040319 in words is "six hundred twenty million, forty thousand, three hundred nineteen".