40030929 has 45 divisors (see below), whose sum is σ = 64864107. Its totient is φ = 24599376.

The previous prime is 40030927. The next prime is 40030931. The reversal of 40030929 is 92903004.

The square root of 40030929 is 6327.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (40030927) and next prime (40030931).

It can be written as a sum of positive squares in only one way, i.e., 35820225 + 4210704 = 5985^2 + 2052^2 .

It is not a de Polignac number, because 40030929 - 2¹ = 40030927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40030927) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1081899 + ... + 1081935.

Almost surely, 2^40030929 is an apocalyptic number.

40030929 is the 6327-th square number.

40030929 is the 3164-th centered octagonal number.

It is an amenable number.

40030929 is a deficient number, since it is larger than the sum of its proper divisors (24833178).

40030929 is an equidigital number, since it uses as much as digits as its factorization.

40030929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The cubic root of 40030929 is about 342.0833130362.

It can be divided in two parts, 400 and 30929, that added together give a square (31329 = 177²).

The spelling of 40030929 in words is "forty million, thirty thousand, nine hundred twenty-nine".