64062020 has 24 divisors (see below), whose sum is σ = 146760768. Its totient is φ = 23295200.

The previous prime is 64062007. The next prime is 64062029. The reversal of 64062020 is 2026046.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 64061983 and 64062001.

It is not an unprimeable number, because it can be changed into a prime (64062029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145376 + ... + 145815.

It is an arithmetic number, because the mean of its divisors is an integer number (6115032).

Almost surely, 2^64062020 is an apocalyptic number.

It is an amenable number.

64062020 is an abundant number, since it is smaller than the sum of its proper divisors (82698748).

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

64062020 is a wasteful number, since it uses less digits than its factorization.

64062020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291211 (or 291209 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 64062020 is about 8003.8753113726. The cubic root of 64062020 is about 400.1291666188.

Adding to 64062020 its reverse (2026046), we get a palindrome (66088066).

The spelling of 64062020 in words is "sixty-four million, sixty-two thousand, twenty".