40749810 has 64 divisors (see below), whose sum is σ = 103403520. Its totient is φ = 10261440.

The previous prime is 40749809. The next prime is 40749817. The reversal of 40749810 is 1894704.

It is a super-2 number, since 2×40749810² = 3321094030072200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40749817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39481 + ... + 40499.

It is an arithmetic number, because the mean of its divisors is an integer number (1615680).

Almost surely, 2^40749810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40749810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51701760).

40749810 is an abundant number, since it is smaller than the sum of its proper divisors (62653710).

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

40749810 is a wasteful number, since it uses less digits than its factorization.

40749810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 40749810 is about 6383.5577854360. The cubic root of 40749810 is about 344.1189026953.

The spelling of 40749810 in words is "forty million, seven hundred forty-nine thousand, eight hundred ten".