620403366 has 32 divisors (see below), whose sum is σ = 1366041600. Its totient is φ = 186274080.

The previous prime is 620403361. The next prime is 620403373. The reversal of 620403366 is 663304026.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620403361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35926 + ... + 50313.

It is an arithmetic number, because the mean of its divisors is an integer number (42688800).

Almost surely, 2^620403366 is an apocalyptic number.

620403366 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

620403366 is an abundant number, since it is smaller than the sum of its proper divisors (745638234).

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

620403366 is a wasteful number, since it uses less digits than its factorization.

620403366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86364.

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 620403366 is about 24907.8976631911. The cubic root of 620403366 is about 852.8867781080.

The spelling of 620403366 in words is "six hundred twenty million, four hundred three thousand, three hundred sixty-six".