620651146 has 16 divisors (see below), whose sum is σ = 941033376. Its totient is φ = 306981936.

The previous prime is 620651111. The next prime is 620651173. The reversal of 620651146 is 641156026.

620651146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×620651146² = 770415690062226632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186025 + ... + 189331.

It is an arithmetic number, because the mean of its divisors is an integer number (58814586).

Almost surely, 2^620651146 is an apocalyptic number.

620651146 is a deficient number, since it is larger than the sum of its proper divisors (320382230).

620651146 is a wasteful number, since it uses less digits than its factorization.

620651146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4293.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 620651146 is about 24912.8710910646. The cubic root of 620651146 is about 853.0003064832. Note that the first 3 decimals are identical.

The spelling of 620651146 in words is "six hundred twenty million, six hundred fifty-one thousand, one hundred forty-six".