2620442064 has 40 divisors (see below), whose sum is σ = 6772821472. Its totient is φ = 873048960.

The previous prime is 2620442047. The next prime is 2620442081. The reversal of 2620442064 is 4602440262.

It is an interprime number because it is at equal distance from previous prime (2620442047) and next prime (2620442081).

It is a super-2 number, since 2×2620442064² = 13733433221561160192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93354 + ... + 118134.

Almost surely, 2^2620442064 is an apocalyptic number.

2620442064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2620442064 is an abundant number, since it is smaller than the sum of its proper divisors (4152379408).

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

2620442064 is a wasteful number, since it uses less digits than its factorization.

2620442064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26995 (or 26989 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 2620442064 is about 51190.2536035914. The cubic root of 2620442064 is about 1378.6632129473.

The spelling of 2620442064 in words is "two billion, six hundred twenty million, four hundred forty-two thousand, sixty-four".