40306929 has 16 divisors (see below), whose sum is σ = 57990912. Its totient is φ = 24755328.

The previous prime is 40306919. The next prime is 40306933. The reversal of 40306929 is 92960304.

It is not a de Polignac number, because 40306929 - 2¹¹ = 40304881 is a prime.

It is a super-2 number, since 2×40306929² = 3249297050822082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40306929.

It is not an unprimeable number, because it can be changed into a prime (40306919) 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, 35992 + ... + 37094.

It is an arithmetic number, because the mean of its divisors is an integer number (3624432).

Almost surely, 2^40306929 is an apocalyptic number.

It is an amenable number.

40306929 is a deficient number, since it is larger than the sum of its proper divisors (17683983).

40306929 is a wasteful number, since it uses less digits than its factorization.

40306929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 40306929 is about 6348.7738186204. The cubic root of 40306929 is about 342.8676968229.

The spelling of 40306929 in words is "forty million, three hundred six thousand, nine hundred twenty-nine".