8020408 has 16 divisors (see below), whose sum is σ = 16405560. Its totient is φ = 3645600.

The previous prime is 8020393. The next prime is 8020423. The reversal of 8020408 is 8040208.

It is an interprime number because it is at equal distance from previous prime (8020393) and next prime (8020423).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45483 + ... + 45658.

Almost surely, 2^8020408 is an apocalyptic number.

8020408 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

8020408 is an abundant number, since it is smaller than the sum of its proper divisors (8385152).

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

8020408 is a wasteful number, since it uses less digits than its factorization.

8020408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91158 (or 91154 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 8020408 is about 2832.0324856894. The cubic root of 8020408 is about 200.1699222579.

The spelling of 8020408 in words is "eight million, twenty thousand, four hundred eight".