620254634 has 16 divisors (see below), whose sum is σ = 964244736. Its totient is φ = 298920000.

The previous prime is 620254633. The next prime is 620254681. The reversal of 620254634 is 436452026.

620254634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 620254634.

It is not an unprimeable number, because it can be changed into a prime (620254631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4367 + ... + 35490.

It is an arithmetic number, because the mean of its divisors is an integer number (60265296).

Almost surely, 2^620254634 is an apocalyptic number.

620254634 is a deficient number, since it is larger than the sum of its proper divisors (343990102).

620254634 is a wasteful number, since it uses less digits than its factorization.

620254634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40141.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 620254634 is about 24904.9118448550. The cubic root of 620254634 is about 852.8186172407.

The spelling of 620254634 in words is "six hundred twenty million, two hundred fifty-four thousand, six hundred thirty-four".