620360434 has 4 divisors (see below), whose sum is σ = 930540654. Its totient is φ = 310180216.

The previous prime is 620360387. The next prime is 620360453. The reversal of 620360434 is 434063026.

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., 336539025 + 283821409 = 18345^2 + 16847^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155090107 + ... + 155090110.

Almost surely, 2^620360434 is an apocalyptic number.

620360434 is a deficient number, since it is larger than the sum of its proper divisors (310180220).

620360434 is a wasteful number, since it uses less digits than its factorization.

620360434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310180219.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 620360434 is about 24907.0358332741. The cubic root of 620360434 is about 852.8671043593.

The spelling of 620360434 in words is "six hundred twenty million, three hundred sixty thousand, four hundred thirty-four".