40402754 has 12 divisors (see below), whose sum is σ = 70498854. Its totient is φ = 17315424.

The previous prime is 40402729. The next prime is 40402777. The reversal of 40402754 is 45720404.

40402754 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 38725729 + 1677025 = 6223^2 + 1295^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206039 + ... + 206234.

Almost surely, 2^40402754 is an apocalyptic number.

40402754 is a deficient number, since it is larger than the sum of its proper divisors (30096100).

40402754 is a wasteful number, since it uses less digits than its factorization.

40402754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412289 (or 412282 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 40402754 is about 6356.3160714363. The cubic root of 40402754 is about 343.1391910437.

The spelling of 40402754 in words is "forty million, four hundred two thousand, seven hundred fifty-four".