40401379 has 8 divisors (see below), whose sum is σ = 41958000. Its totient is φ = 38855712.

The previous prime is 40401377. The next prime is 40401397. The reversal of 40401379 is 97310404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40401379 - 2¹ = 40401377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40401377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5212 + ... + 10390.

It is an arithmetic number, because the mean of its divisors is an integer number (5244750).

Almost surely, 2^40401379 is an apocalyptic number.

40401379 is a deficient number, since it is larger than the sum of its proper divisors (1556621).

40401379 is a wasteful number, since it uses less digits than its factorization.

40401379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5477.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 40401379 is about 6356.2079103818. The cubic root of 40401379 is about 343.1352983904.

The spelling of 40401379 in words is "forty million, four hundred one thousand, three hundred seventy-nine".