427099149 has 20 divisors (see below), whose sum is σ = 639518880. Its totient is φ = 284060520.

The previous prime is 427099147. The next prime is 427099181. The reversal of 427099149 is 941990724.

It is a happy number.

It is not a de Polignac number, because 427099149 - 2¹ = 427099147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427099147) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29554 + ... + 41564.

It is an arithmetic number, because the mean of its divisors is an integer number (31975944).

Almost surely, 2^427099149 is an apocalyptic number.

It is an amenable number.

427099149 is a deficient number, since it is larger than the sum of its proper divisors (212419731).

427099149 is a wasteful number, since it uses less digits than its factorization.

427099149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12462 (or 12453 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 427099149 is about 20666.3772587263. The cubic root of 427099149 is about 753.0831006206.

The spelling of 427099149 in words is "four hundred twenty-seven million, ninety-nine thousand, one hundred forty-nine".