40403023001 has 12 divisors (see below), whose sum is σ = 44456661396. Its totient is φ = 36691374720.

The previous prime is 40403022991. The next prime is 40403023007. The reversal of 40403023001 is 10032030404.

It can be written as a sum of positive squares in 2 ways, for example, as 23580673600 + 16822349401 = 153560^2 + 129701^2 .

It is not a de Polignac number, because 40403023001 - 2⁶ = 40403022937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40403023007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59876 + ... + 290501.

It is an arithmetic number, because the mean of its divisors is an integer number (3704721783).

Almost surely, 2^40403023001 is an apocalyptic number.

It is an amenable number.

40403023001 is a deficient number, since it is larger than the sum of its proper divisors (4053638395).

40403023001 is a wasteful number, since it uses less digits than its factorization.

40403023001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351352 (or 351341 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 40403023001 its reverse (10032030404), we get a palindrome (50435053405).

The spelling of 40403023001 in words is "forty billion, four hundred three million, twenty-three thousand, one".