40404403407 has 4 divisors (see below), whose sum is σ = 53872537880. Its totient is φ = 26936268936.

The previous prime is 40404403343. The next prime is 40404403471. The reversal of 40404403407 is 70430440404.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (40404403343) and next prime (40404403471).

It is not a de Polignac number, because 40404403407 - 2⁶ = 40404403343 is a prime.

It is a super-3 number, since 3×40404403407³ (a number of 33 digits) contains 333 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 (40404403477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6734067232 + ... + 6734067237.

It is an arithmetic number, because the mean of its divisors is an integer number (13468134470).

Almost surely, 2^40404403407 is an apocalyptic number.

40404403407 is a deficient number, since it is larger than the sum of its proper divisors (13468134473).

40404403407 is a wasteful number, since it uses less digits than its factorization.

40404403407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13468134472.

The product of its (nonzero) digits is 21504, while the sum is 30.

The spelling of 40404403407 in words is "forty billion, four hundred four million, four hundred three thousand, four hundred seven".