40193029 has 16 divisors (see below), whose sum is σ = 43075584. Its totient is φ = 37422000.

The previous prime is 40193009. The next prime is 40193033. The reversal of 40193029 is 92039104.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40193029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40192988 and 40193006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40193009) 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, 246502 + ... + 246664.

It is an arithmetic number, because the mean of its divisors is an integer number (2692224).

Almost surely, 2^40193029 is an apocalyptic number.

It is an amenable number.

40193029 is a deficient number, since it is larger than the sum of its proper divisors (2882555).

40193029 is a wasteful number, since it uses less digits than its factorization.

40193029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 40193029 is about 6339.7972365053. The cubic root of 40193029 is about 342.5444316947.

The spelling of 40193029 in words is "forty million, one hundred ninety-three thousand, twenty-nine".