6040021405 has 16 divisors (see below), whose sum is σ = 7910083584. Its totient is φ = 4390994880.

The previous prime is 6040021399. The next prime is 6040021411. The reversal of 6040021405 is 5041200406.

It is an interprime number because it is at equal distance from previous prime (6040021399) and next prime (6040021411).

It is not a de Polignac number, because 6040021405 - 2⁵ = 6040021373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126724 + ... + 167746.

It is an arithmetic number, because the mean of its divisors is an integer number (494380224).

Almost surely, 2^6040021405 is an apocalyptic number.

It is an amenable number.

6040021405 is a deficient number, since it is larger than the sum of its proper divisors (1870062179).

6040021405 is a wasteful number, since it uses less digits than its factorization.

6040021405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43716.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 6040021405 is about 77717.5746211885. The cubic root of 6040021405 is about 1821.1518495528.

The spelling of 6040021405 in words is "six billion, forty million, twenty-one thousand, four hundred five".