40400132 has 24 divisors (see below), whose sum is σ = 74390400. Its totient is φ = 19169696.

The previous prime is 40400131. The next prime is 40400141. The reversal of 40400132 is 23100404.

It is not an unprimeable number, because it can be changed into a prime (40400131) 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, 3893 + ... + 9795.

It is an arithmetic number, because the mean of its divisors is an integer number (3099600).

Almost surely, 2^40400132 is an apocalyptic number.

It is an amenable number.

40400132 is a deficient number, since it is larger than the sum of its proper divisors (33990268).

40400132 is a wasteful number, since it uses less digits than its factorization.

40400132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5995 (or 5993 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 40400132 is about 6356.1098165466. The cubic root of 40400132 is about 343.1317680314.

Adding to 40400132 its reverse (23100404), we get a palindrome (63500536).

The spelling of 40400132 in words is "forty million, four hundred thousand, one hundred thirty-two".