40304121 has 16 divisors (see below), whose sum is σ = 63134400. Its totient is φ = 22547520.

The previous prime is 40304101. The next prime is 40304129. The reversal of 40304121 is 12140304.

It is not a de Polignac number, because 40304121 - 2⁶ = 40304057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40304121.

It is not an unprimeable number, because it can be changed into a prime (40304129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46546 + ... + 47403.

It is an arithmetic number, because the mean of its divisors is an integer number (3945900).

Almost surely, 2^40304121 is an apocalyptic number.

It is an amenable number.

40304121 is a deficient number, since it is larger than the sum of its proper divisors (22830279).

40304121 is a wasteful number, since it uses less digits than its factorization.

40304121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93976.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 40304121 is about 6348.5526697035. The cubic root of 40304121 is about 342.8597346282.

Adding to 40304121 its reverse (12140304), we get a palindrome (52444425).

It can be divided in two parts, 40304 and 121, that multiplied together give a palindrome (4876784).

The spelling of 40304121 in words is "forty million, three hundred four thousand, one hundred twenty-one".