245470190 has 32 divisors (see below), whose sum is σ = 515718144. Its totient is φ = 82369440.

The previous prime is 245470171. The next prime is 245470207. The reversal of 245470190 is 91074542.

It is a happy number.

It is a super-2 number, since 2×245470190² = 120511228357272200, which contains 22 as substring.

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, 34016 + ... + 40595.

It is an arithmetic number, because the mean of its divisors is an integer number (16116192).

Almost surely, 2^245470190 is an apocalyptic number.

245470190 is an abundant number, since it is smaller than the sum of its proper divisors (270247954).

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

245470190 is a wasteful number, since it uses less digits than its factorization.

245470190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74672.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 245470190 is about 15667.4883117876. The cubic root of 245470190 is about 626.1325087721.

The spelling of 245470190 in words is "two hundred forty-five million, four hundred seventy thousand, one hundred ninety".