620149172 has 12 divisors (see below), whose sum is σ = 1120269696. Its totient is φ = 300072120.

The previous prime is 620149169. The next prime is 620149181. The reversal of 620149172 is 271941026.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2500478 + ... + 2500725.

It is an arithmetic number, because the mean of its divisors is an integer number (93355808).

Almost surely, 2^620149172 is an apocalyptic number.

620149172 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

620149172 is a deficient number, since it is larger than the sum of its proper divisors (500120524).

620149172 is a wasteful number, since it uses less digits than its factorization.

620149172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001238 (or 5001236 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 620149172 is about 24902.7944616663. The cubic root of 620149172 is about 852.7702795365.

The spelling of 620149172 in words is "six hundred twenty million, one hundred forty-nine thousand, one hundred seventy-two".