245291428 has 12 divisors (see below), whose sum is σ = 433510812. Its totient is φ = 121431200.

The previous prime is 245291407. The next prime is 245291443. The reversal of 245291428 is 824192542.

It can be written as a sum of positive squares in 2 ways, for example, as 161239204 + 84052224 = 12698^2 + 9168^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303175 + ... + 303982.

It is an arithmetic number, because the mean of its divisors is an integer number (36125901).

Almost surely, 2^245291428 is an apocalyptic number.

It is an amenable number.

245291428 is a deficient number, since it is larger than the sum of its proper divisors (188219384).

245291428 is a wasteful number, since it uses less digits than its factorization.

245291428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607262 (or 607260 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 245291428 is about 15661.7824017575. The cubic root of 245291428 is about 625.9804796112.

The spelling of 245291428 in words is "two hundred forty-five million, two hundred ninety-one thousand, four hundred twenty-eight".