40802836 has 6 divisors (see below), whose sum is σ = 71404970. Its totient is φ = 20401416.

The previous prime is 40802833. The next prime is 40802903. The reversal of 40802836 is 63820804.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24561936 + 16240900 = 4956^2 + 4030^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40802798 and 40802807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40802833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100351 + ... + 5100358.

Almost surely, 2^40802836 is an apocalyptic number.

It is an amenable number.

40802836 is a deficient number, since it is larger than the sum of its proper divisors (30602134).

40802836 is a wasteful number, since it uses less digits than its factorization.

40802836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10200713 (or 10200711 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 40802836 is about 6387.7097617221. The cubic root of 40802836 is about 344.2681004450.

The spelling of 40802836 in words is "forty million, eight hundred two thousand, eight hundred thirty-six".