249127420 has 12 divisors (see below), whose sum is σ = 523167624. Its totient is φ = 99650960.

The previous prime is 249127409. The next prime is 249127433. The reversal of 249127420 is 24721942.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6228166 + ... + 6228205.

It is an arithmetic number, because the mean of its divisors is an integer number (43597302).

Almost surely, 2^249127420 is an apocalyptic number.

249127420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249127420 is an abundant number, since it is smaller than the sum of its proper divisors (274040204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249127420 is a wasteful number, since it uses less digits than its factorization.

249127420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12456380 (or 12456378 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 249127420 is about 15783.7707788728. The cubic root of 249127420 is about 629.2267493070.

The spelling of 249127420 in words is "two hundred forty-nine million, one hundred twenty-seven thousand, four hundred twenty".