620475026 has 4 divisors (see below), whose sum is σ = 930712542. Its totient is φ = 310237512.

The previous prime is 620475019. The next prime is 620475029. The reversal of 620475026 is 620574026.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 451605001 + 168870025 = 21251^2 + 12995^2 .

It is a junction number, because it is equal to n+sod(n) for n = 620474983 and 620475001.

It is not an unprimeable number, because it can be changed into a prime (620475029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155118755 + ... + 155118758.

Almost surely, 2^620475026 is an apocalyptic number.

620475026 is a deficient number, since it is larger than the sum of its proper divisors (310237516).

620475026 is a wasteful number, since it uses less digits than its factorization.

620475026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310237515.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 620475026 is about 24909.3361212217. The cubic root of 620475026 is about 852.9196145479.

The spelling of 620475026 in words is "six hundred twenty million, four hundred seventy-five thousand, twenty-six".