40379121 has 16 divisors (see below), whose sum is σ = 60048000. Its totient is φ = 26817264.

The previous prime is 40379117. The next prime is 40379153. The reversal of 40379121 is 12197304.

It is not a de Polignac number, because 40379121 - 2² = 40379117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40379111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4780 + ... + 10178.

It is an arithmetic number, because the mean of its divisors is an integer number (3753000).

Almost surely, 2^40379121 is an apocalyptic number.

It is an amenable number.

40379121 is a deficient number, since it is larger than the sum of its proper divisors (19668879).

40379121 is a wasteful number, since it uses less digits than its factorization.

40379121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685 (or 5679 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 40379121 is about 6354.4567824480. The cubic root of 40379121 is about 343.0722732442.

It can be divided in two parts, 403 and 79121, that added together give a square (79524 = 282²).

The spelling of 40379121 in words is "forty million, three hundred seventy-nine thousand, one hundred twenty-one".