40749436 has 24 divisors (see below), whose sum is σ = 87768800. Its totient is φ = 16120512.

The previous prime is 40749427. The next prime is 40749439. The reversal of 40749436 is 63494704.

It is a junction number, because it is equal to n+sod(n) for n = 40749395 and 40749404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40749439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55611 + ... + 56338.

Almost surely, 2^40749436 is an apocalyptic number.

It is an amenable number.

40749436 is an abundant number, since it is smaller than the sum of its proper divisors (47019364).

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

40749436 is a wasteful number, since it uses less digits than its factorization.

40749436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111973 (or 111971 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 40749436 is about 6383.5284913596. The cubic root of 40749436 is about 344.1178499226.

The spelling of 40749436 in words is "forty million, seven hundred forty-nine thousand, four hundred thirty-six".