620401335 has 16 divisors (see below), whose sum is σ = 993202560. Its totient is φ = 330693920.

The previous prime is 620401303. The next prime is 620401361. The reversal of 620401335 is 533104026.

It is a happy number.

It is not a de Polignac number, because 620401335 - 2⁵ = 620401303 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 18256 + ... + 39674.

It is an arithmetic number, because the mean of its divisors is an integer number (62075160).

Almost surely, 2^620401335 is an apocalyptic number.

620401335 is a deficient number, since it is larger than the sum of its proper divisors (372801225).

620401335 is a wasteful number, since it uses less digits than its factorization.

620401335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23358.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 620401335 is about 24907.8568929565. The cubic root of 620401335 is about 852.8858474151.

The spelling of 620401335 in words is "six hundred twenty million, four hundred one thousand, three hundred thirty-five".