40902123 has 8 divisors (see below), whose sum is σ = 54582736. Its totient is φ = 27244800.

The previous prime is 40902109. The next prime is 40902137. The reversal of 40902123 is 32120904.

It is an interprime number because it is at equal distance from previous prime (40902109) and next prime (40902137).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40902123 - 2⁴ = 40902107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40902123.

It is not an unprimeable number, because it can be changed into a prime (40902143) 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, 1198 + ... + 9123.

It is an arithmetic number, because the mean of its divisors is an integer number (6822842).

Almost surely, 2^40902123 is an apocalyptic number.

40902123 is a deficient number, since it is larger than the sum of its proper divisors (13680613).

40902123 is a wasteful number, since it uses less digits than its factorization.

40902123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11645.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 40902123 is about 6395.4767609616. The cubic root of 40902123 is about 344.5471142160.

The spelling of 40902123 in words is "forty million, nine hundred two thousand, one hundred twenty-three".