40304229 has 48 divisors (see below), whose sum is σ = 67785600. Its totient is φ = 20837376.

The previous prime is 40304227. The next prime is 40304233. The reversal of 40304229 is 92240304.

40304229 = T₃₇₇ + T₃₇₈ + ... + T₆₆₅.

It is a happy number.

It is not a de Polignac number, because 40304229 - 2¹ = 40304227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40304199 and 40304208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40304227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 175887 + ... + 176115.

It is an arithmetic number, because the mean of its divisors is an integer number (1412200).

Almost surely, 2^40304229 is an apocalyptic number.

It is an amenable number.

40304229 is a deficient number, since it is larger than the sum of its proper divisors (27481371).

40304229 is a wasteful number, since it uses less digits than its factorization.

40304229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 40304229 is about 6348.5611755736. The cubic root of 40304229 is about 342.8600408733.

The spelling of 40304229 in words is "forty million, three hundred four thousand, two hundred twenty-nine".