40917123 has 32 divisors (see below), whose sum is σ = 66823680. Its totient is φ = 24585120.

The previous prime is 40917103. The next prime is 40917131. The reversal of 40917123 is 32171904.

It is not a de Polignac number, because 40917123 - 2⁹ = 40916611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40917103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13738 + ... + 16448.

It is an arithmetic number, because the mean of its divisors is an integer number (2088240).

Almost surely, 2^40917123 is an apocalyptic number.

40917123 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

40917123 is a deficient number, since it is larger than the sum of its proper divisors (25906557).

40917123 is a wasteful number, since it uses less digits than its factorization.

40917123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776 (or 2770 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 40917123 is about 6396.6493572807. The cubic root of 40917123 is about 344.5892275562.

The spelling of 40917123 in words is "forty million, nine hundred seventeen thousand, one hundred twenty-three".