620454430 has 16 divisors (see below), whose sum is σ = 1121271984. Its totient is φ = 247192000.

The previous prime is 620454427. The next prime is 620454433. The reversal of 620454430 is 34454026.

It is an interprime number because it is at equal distance from previous prime (620454427) and next prime (620454433).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620454433) 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, 121087 + ... + 126106.

It is an arithmetic number, because the mean of its divisors is an integer number (70079499).

Almost surely, 2^620454430 is an apocalyptic number.

620454430 is a deficient number, since it is larger than the sum of its proper divisors (500817554).

620454430 is a wasteful number, since it uses less digits than its factorization.

620454430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247451.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 620454430 is about 24908.9226985030. The cubic root of 620454430 is about 852.9101771942.

The spelling of 620454430 in words is "six hundred twenty million, four hundred fifty-four thousand, four hundred thirty".