620794449 has 40 divisors (see below), whose sum is σ = 1055685312. Its totient is φ = 359868960.

The previous prime is 620794439. The next prime is 620794469. The reversal of 620794449 is 944497026.

It is not a de Polignac number, because 620794449 - 2⁹ = 620793937 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620794439) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5347 + ... + 35639.

Almost surely, 2^620794449 is an apocalyptic number.

620794449 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

620794449 is a deficient number, since it is larger than the sum of its proper divisors (434890863).

620794449 is a wasteful number, since it uses less digits than its factorization.

620794449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30339 (or 30330 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 620794449 is about 24915.7470086690. The cubic root of 620794449 is about 853.0659515706.

The spelling of 620794449 in words is "six hundred twenty million, seven hundred ninety-four thousand, four hundred forty-nine".