249280534 has 8 divisors (see below), whose sum is σ = 375800400. Its totient is φ = 124013736.

The previous prime is 249280531. The next prime is 249280541. The reversal of 249280534 is 435082942.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 249280493 and 249280502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249280531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312769 + ... + 313564.

It is an arithmetic number, because the mean of its divisors is an integer number (46975050).

Almost surely, 2^249280534 is an apocalyptic number.

249280534 is a deficient number, since it is larger than the sum of its proper divisors (126519866).

249280534 is a wasteful number, since it uses less digits than its factorization.

249280534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626534.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 249280534 is about 15788.6203957154. The cubic root of 249280534 is about 629.3556307360.

The spelling of 249280534 in words is "two hundred forty-nine million, two hundred eighty thousand, five hundred thirty-four".