40007376 has 30 divisors (see below), whose sum is σ = 111965490. Its totient is φ = 13335744.

The previous prime is 40007371. The next prime is 40007381. The reversal of 40007376 is 67370004.

It is an interprime number because it is at equal distance from previous prime (40007371) and next prime (40007381).

It can be written as a sum of positive squares in only one way, i.e., 39992976 + 14400 = 6324^2 + 120^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40007371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138771 + ... + 139058.

It is an arithmetic number, because the mean of its divisors is an integer number (3732183).

Almost surely, 2^40007376 is an apocalyptic number.

It is an amenable number.

40007376 is an abundant number, since it is smaller than the sum of its proper divisors (71958114).

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

40007376 is a wasteful number, since it uses less digits than its factorization.

40007376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277843 (or 277834 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 40007376 is about 6325.1384174578. The cubic root of 40007376 is about 342.0162093477.

The spelling of 40007376 in words is "forty million, seven thousand, three hundred seventy-six".