620742294 has 24 divisors (see below), whose sum is σ = 1346250672. Its totient is φ = 206712720.

The previous prime is 620742289. The next prime is 620742299. The reversal of 620742294 is 492247026.

620742294 is a `hidden beast` number, since 620 + 7 + 4 + 2 + 29 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (620742289) and next prime (620742299).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620742299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2847 + ... + 35349.

It is an arithmetic number, because the mean of its divisors is an integer number (56093778).

Almost surely, 2^620742294 is an apocalyptic number.

620742294 is an abundant number, since it is smaller than the sum of its proper divisors (725508378).

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

620742294 is a wasteful number, since it uses less digits than its factorization.

620742294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33572 (or 33569 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 620742294 is about 24914.7003594264. The cubic root of 620742294 is about 853.0420612686.

The spelling of 620742294 in words is "six hundred twenty million, seven hundred forty-two thousand, two hundred ninety-four".