40279029 has 12 divisors (see below), whose sum is σ = 62473824. Its totient is φ = 23016504.

The previous prime is 40279027. The next prime is 40279033. The reversal of 40279029 is 92097204.

It is not a de Polignac number, because 40279029 - 2¹ = 40279027 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40279027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136857 + ... + 137150.

It is an arithmetic number, because the mean of its divisors is an integer number (5206152).

Almost surely, 2^40279029 is an apocalyptic number.

40279029 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

40279029 is a deficient number, since it is larger than the sum of its proper divisors (22194795).

40279029 is a wasteful number, since it uses less digits than its factorization.

40279029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274024 (or 274017 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 40279029 is about 6346.5761635704. The cubic root of 40279029 is about 342.7885688501.

The spelling of 40279029 in words is "forty million, two hundred seventy-nine thousand, twenty-nine".