7702020404 has 12 divisors (see below), whose sum is σ = 14515346244. Its totient is φ = 3554778624.

The previous prime is 7702020397. The next prime is 7702020409. The reversal of 7702020404 is 4040202077.

It can be written as a sum of positive squares in 2 ways, for example, as 5100816400 + 2601204004 = 71420^2 + 51002^2 .

It is a super-2 number, since 2×7702020404² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7702020409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74057837 + ... + 74057940.

It is an arithmetic number, because the mean of its divisors is an integer number (1209612187).

Almost surely, 2^7702020404 is an apocalyptic number.

It is an amenable number.

7702020404 is a deficient number, since it is larger than the sum of its proper divisors (6813325840).

7702020404 is a wasteful number, since it uses less digits than its factorization.

7702020404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148115794 (or 148115792 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 7702020404 is about 87761.1554390665. The cubic root of 7702020404 is about 1974.8535193610.

The spelling of 7702020404 in words is "seven billion, seven hundred two million, twenty thousand, four hundred four".