40200080 has 20 divisors (see below), whose sum is σ = 93465372. Its totient is φ = 16080000.

The previous prime is 40200071. The next prime is 40200091. The reversal of 40200080 is 8000204.

It can be written as a sum of positive squares in 2 ways, for example, as 28558336 + 11641744 = 5344^2 + 3412^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 251171 + ... + 251330.

Almost surely, 2^40200080 is an apocalyptic number.

40200080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40200080 is an abundant number, since it is smaller than the sum of its proper divisors (53265292).

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

40200080 is a wasteful number, since it uses less digits than its factorization.

40200080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502514 (or 502508 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 40200080 is about 6340.3533024588. The cubic root of 40200080 is about 342.5644612008.

Adding to 40200080 its reverse (8000204), we get a palindrome (48200284).

The spelling of 40200080 in words is "forty million, two hundred thousand, eighty".