249023412 has 144 divisors (see below), whose sum is σ = 738751104. Its totient is φ = 69888000.

The previous prime is 249023387. The next prime is 249023473. The reversal of 249023412 is 214320942.

249023412 is a `hidden beast` number, since 249 + 0 + 2 + 3 + 412 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 477712 + ... + 478232.

It is an arithmetic number, because the mean of its divisors is an integer number (5130216).

Almost surely, 2^249023412 is an apocalyptic number.

249023412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249023412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369375552).

249023412 is an abundant number, since it is smaller than the sum of its proper divisors (489727692).

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

249023412 is a wasteful number, since it uses less digits than its factorization.

249023412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 249023412 is about 15780.4756582303. The cubic root of 249023412 is about 629.1391720005.

The spelling of 249023412 in words is "two hundred forty-nine million, twenty-three thousand, four hundred twelve".