249078438 has 48 divisors (see below), whose sum is σ = 617700096. Its totient is φ = 71057520.

The previous prime is 249078377. The next prime is 249078449. The reversal of 249078438 is 834870942.

249078438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 249078393 and 249078402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122853 + ... + 124863.

It is an arithmetic number, because the mean of its divisors is an integer number (12868752).

Almost surely, 2^249078438 is an apocalyptic number.

249078438 is an abundant number, since it is smaller than the sum of its proper divisors (368621658).

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

249078438 is a wasteful number, since it uses less digits than its factorization.

249078438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009 (or 3006 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 249078438 is about 15782.2190454955. The cubic root of 249078438 is about 629.1855082896.

The spelling of 249078438 in words is "two hundred forty-nine million, seventy-eight thousand, four hundred thirty-eight".