77254020 has 48 divisors (see below), whose sum is σ = 240347520. Its totient is φ = 20600928.

The previous prime is 77254003. The next prime is 77254027. The reversal of 77254020 is 2045277.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (77254027) 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, 70992 + ... + 72071.

It is an arithmetic number, because the mean of its divisors is an integer number (5007240).

Almost surely, 2^77254020 is an apocalyptic number.

It is an amenable number.

77254020 is an abundant number, since it is smaller than the sum of its proper divisors (163093500).

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

77254020 is a wasteful number, since it uses less digits than its factorization.

77254020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143081 (or 143073 counting only the distinct ones).

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

The square root of 77254020 is about 8789.4266024582. The cubic root of 77254020 is about 425.8994009629.

Adding to 77254020 its reverse (2045277), we get a palindrome (79299297).

The spelling of 77254020 in words is "seventy-seven million, two hundred fifty-four thousand, twenty".