620001045 has 48 divisors (see below), whose sum is σ = 1119052272. Its totient is φ = 317260800.

The previous prime is 620001043. The next prime is 620001059. The reversal of 620001045 is 540100026.

It is a happy number.

620001045 is a `hidden beast` number, since 620 + 0 + 0 + 1 + 0 + 45 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 22638564 + 597362481 = 4758^2 + 24441^2 .

It is not a de Polignac number, because 620001045 - 2¹ = 620001043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620001043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118995 + ... + 124095.

It is an arithmetic number, because the mean of its divisors is an integer number (23313589).

Almost surely, 2^620001045 is an apocalyptic number.

It is an amenable number.

620001045 is a deficient number, since it is larger than the sum of its proper divisors (499051227).

620001045 is a wasteful number, since it uses less digits than its factorization.

620001045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5222 (or 5219 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 620001045 is about 24899.8201800736. The cubic root of 620001045 is about 852.7023773997.

The spelling of 620001045 in words is "six hundred twenty million, one thousand, forty-five".