40298427 has 24 divisors (see below), whose sum is σ = 63129248. Its totient is φ = 24624000.

The previous prime is 40298417. The next prime is 40298443. The reversal of 40298427 is 72489204.

It is not a de Polignac number, because 40298427 - 2¹⁴ = 40282043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40298391 and 40298400.

It is not an unprimeable number, because it can be changed into a prime (40298407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16527 + ... + 18807.

Almost surely, 2^40298427 is an apocalyptic number.

40298427 is a deficient number, since it is larger than the sum of its proper divisors (22830821).

40298427 is a wasteful number, since it uses less digits than its factorization.

40298427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451 (or 2448 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 40298427 is about 6348.1042051939. The cubic root of 40298427 is about 342.8435879314.

The spelling of 40298427 in words is "forty million, two hundred ninety-eight thousand, four hundred twenty-seven".