40067429 has 2 divisors, whose sum is σ = 40067430. Its totient is φ = 40067428.

The previous prime is 40067399. The next prime is 40067459. The reversal of 40067429 is 92476004.

It is a balanced prime because it is at equal distance from previous prime (40067399) and next prime (40067459).

It can be written as a sum of positive squares in only one way, i.e., 21808900 + 18258529 = 4670^2 + 4273^2 .

It is a cyclic number.

It is not a de Polignac number, because 40067429 - 2¹⁶ = 40001893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40067395 and 40067404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40067459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20033714 + 20033715.

It is an arithmetic number, because the mean of its divisors is an integer number (20033715).

Almost surely, 2^40067429 is an apocalyptic number.

It is an amenable number.

40067429 is a deficient number, since it is larger than the sum of its proper divisors (1).

40067429 is an equidigital number, since it uses as much as digits as its factorization.

40067429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 40067429 is about 6329.8838062006. The cubic root of 40067429 is about 342.1872514013.

The spelling of 40067429 in words is "forty million, sixty-seven thousand, four hundred twenty-nine".