620507450 has 12 divisors (see below), whose sum is σ = 1154143950. Its totient is φ = 248202960.

The previous prime is 620507449. The next prime is 620507467. The reversal of 620507450 is 54705026.

620507450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 309302569 + 311204881 = 17587^2 + 17641^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6205025 + ... + 6205124.

Almost surely, 2^620507450 is an apocalyptic number.

620507450 is a deficient number, since it is larger than the sum of its proper divisors (533636500).

620507450 is a wasteful number, since it uses less digits than its factorization.

620507450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12410161 (or 12410156 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 620507450 is about 24909.9869530275. The cubic root of 620507450 is about 852.9344712210.

The spelling of 620507450 in words is "six hundred twenty million, five hundred seven thousand, four hundred fifty".