40400514 has 96 divisors (see below), whose sum is σ = 110582784. Its totient is φ = 10355040.

The previous prime is 40400513. The next prime is 40400519. The reversal of 40400514 is 41500404.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40400513) 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 47 ways as a sum of consecutive naturals, for example, 142617 + ... + 142899.

It is an arithmetic number, because the mean of its divisors is an integer number (1151904).

Almost surely, 2^40400514 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40400514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55291392).

40400514 is an abundant number, since it is smaller than the sum of its proper divisors (70182270).

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

40400514 is a wasteful number, since it uses less digits than its factorization.

40400514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40400514 is about 6356.1398663025. The cubic root of 40400514 is about 343.1328495124.

Adding to 40400514 its reverse (41500404), we get a palindrome (81900918).

The spelling of 40400514 in words is "forty million, four hundred thousand, five hundred fourteen".