40734140 has 24 divisors (see below), whose sum is σ = 85700160. Its totient is φ = 16263488.

The previous prime is 40734137. The next prime is 40734149. The reversal of 40734140 is 4143704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40734149) 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, 11501 + ... + 14619.

It is an arithmetic number, because the mean of its divisors is an integer number (3570840).

Almost surely, 2^40734140 is an apocalyptic number.

It is an amenable number.

40734140 is an abundant number, since it is smaller than the sum of its proper divisors (44966020).

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

40734140 is a wasteful number, since it uses less digits than its factorization.

40734140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3781 (or 3779 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 40734140 is about 6382.3302954329. The cubic root of 40734140 is about 344.0747876876.

Adding to 40734140 its reverse (4143704), we get a palindrome (44877844).

The spelling of 40734140 in words is "forty million, seven hundred thirty-four thousand, one hundred forty".