620417340 has 48 divisors (see below), whose sum is σ = 1930188960. Its totient is φ = 165444480.

The previous prime is 620417339. The next prime is 620417359. The reversal of 620417340 is 43714026.

620417340 is a `hidden beast` number, since 620 + 4 + 1 + 7 + 34 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 573921 + ... + 575000.

It is an arithmetic number, because the mean of its divisors is an integer number (40212270).

Almost surely, 2^620417340 is an apocalyptic number.

620417340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

620417340 is an abundant number, since it is smaller than the sum of its proper divisors (1309771620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620417340 is a wasteful number, since it uses less digits than its factorization.

620417340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148939 (or 1148931 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 620417340 is about 24908.1781750493. The cubic root of 620417340 is about 852.8931815497.

The spelling of 620417340 in words is "six hundred twenty million, four hundred seventeen thousand, three hundred forty".