245703990 has 32 divisors (see below), whose sum is σ = 673931520. Its totient is φ = 56160864.

The previous prime is 245703989. The next prime is 245704031. The reversal of 245703990 is 99307542.

245703990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 584800 + ... + 585219.

It is an arithmetic number, because the mean of its divisors is an integer number (21060360).

Almost surely, 2^245703990 is an apocalyptic number.

245703990 is an abundant number, since it is smaller than the sum of its proper divisors (428227530).

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

245703990 is a wasteful number, since it uses less digits than its factorization.

245703990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170036.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 245703990 is about 15674.9478468032. The cubic root of 245703990 is about 626.3312339593.

The spelling of 245703990 in words is "two hundred forty-five million, seven hundred three thousand, nine hundred ninety".