40102654 has 32 divisors (see below), whose sum is σ = 66585600. Its totient is φ = 18040320.

The previous prime is 40102651. The next prime is 40102661. The reversal of 40102654 is 45620104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40102651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69214 + ... + 69790.

It is an arithmetic number, because the mean of its divisors is an integer number (2080800).

Almost surely, 2^40102654 is an apocalyptic number.

40102654 is a deficient number, since it is larger than the sum of its proper divisors (26482946).

40102654 is a wasteful number, since it uses less digits than its factorization.

40102654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 40102654 is about 6332.6656314699. The cubic root of 40102654 is about 342.2874992060.

Adding to 40102654 its reverse (45620104), we get a palindrome (85722758).

The spelling of 40102654 in words is "forty million, one hundred two thousand, six hundred fifty-four".