577402020 has 432 divisors, whose sum is σ = 2126255040. Its totient is φ = 131010048.

The previous prime is 577402013. The next prime is 577402031. The reversal of 577402020 is 20204775.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 143 ways as a sum of consecutive naturals, for example, 15605442 + ... + 15605478.

Almost surely, 2^577402020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 577402020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1063127520).

577402020 is an abundant number, since it is smaller than the sum of its proper divisors (1548853020).

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

577402020 is a wasteful number, since it uses less digits than its factorization.

577402020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 577402020 is about 24029.1909976179. The cubic root of 577402020 is about 832.7080561070.

Adding to 577402020 its reverse (20204775), we get a palindrome (597606795).

The spelling of 577402020 in words is "five hundred seventy-seven million, four hundred two thousand, twenty".