40401908395 has 32 divisors (see below), whose sum is σ = 51829398720. Its totient is φ = 30178982400.

The previous prime is 40401908381. The next prime is 40401908461. The reversal of 40401908395 is 59380910404.

It is a happy number.

It is not a de Polignac number, because 40401908395 - 2⁵ = 40401908363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 597657 + ... + 661813.

It is an arithmetic number, because the mean of its divisors is an integer number (1619668710).

Almost surely, 2^40401908395 is an apocalyptic number.

40401908395 is a deficient number, since it is larger than the sum of its proper divisors (11427490325).

40401908395 is a wasteful number, since it uses less digits than its factorization.

40401908395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64335.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 40401908395 in words is "forty billion, four hundred one million, nine hundred eight thousand, three hundred ninety-five".