248621390 has 16 divisors (see below), whose sum is σ = 447927408. Its totient is φ = 99357696.

The previous prime is 248621371. The next prime is 248621393. The reversal of 248621390 is 93126842.

It is a self number, because there is not a number n which added to its sum of digits gives 248621390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248621393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749 + ... + 22311.

It is an arithmetic number, because the mean of its divisors is an integer number (27995463).

Almost surely, 2^248621390 is an apocalyptic number.

248621390 is a deficient number, since it is larger than the sum of its proper divisors (199306018).

248621390 is a wasteful number, since it uses less digits than its factorization.

248621390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22723.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 248621390 is about 15767.7325573463. The cubic root of 248621390 is about 628.8004300635.

The spelling of 248621390 in words is "two hundred forty-eight million, six hundred twenty-one thousand, three hundred ninety".