40138703 has 16 divisors (see below), whose sum is σ = 46483200. Its totient is φ = 34298880.

The previous prime is 40138699. The next prime is 40138711. The reversal of 40138703 is 30783104.

It is not a de Polignac number, because 40138703 - 2² = 40138699 is a prime.

It is a super-2 number, since 2×40138703² = 3222230957044418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40138103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13583 + ... + 16271.

It is an arithmetic number, because the mean of its divisors is an integer number (2905200).

Almost surely, 2^40138703 is an apocalyptic number.

40138703 is a deficient number, since it is larger than the sum of its proper divisors (6344497).

40138703 is a wasteful number, since it uses less digits than its factorization.

40138703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 40138703 is about 6335.5112658727. The cubic root of 40138703 is about 342.3900312946.

The spelling of 40138703 in words is "forty million, one hundred thirty-eight thousand, seven hundred three".