40138802 has 16 divisors (see below), whose sum is σ = 69545952. Its totient is φ = 17171520.

The previous prime is 40138801. The next prime is 40138817. The reversal of 40138802 is 20883104.

It is a super-2 number, since 2×40138802² = 3222246851990408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40138801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53288 + ... + 54035.

It is an arithmetic number, because the mean of its divisors is an integer number (4346622).

Almost surely, 2^40138802 is an apocalyptic number.

40138802 is a deficient number, since it is larger than the sum of its proper divisors (29407150).

40138802 is a wasteful number, since it uses less digits than its factorization.

40138802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107353.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 40138802 is about 6335.5190789706. The cubic root of 40138802 is about 342.3903127900.

The spelling of 40138802 in words is "forty million, one hundred thirty-eight thousand, eight hundred two".