90245210 has 16 divisors (see below), whose sum is σ = 177208992. Its totient is φ = 32816400.

The previous prime is 90245209. The next prime is 90245213. The reversal of 90245210 is 1254209.

It is not an unprimeable number, because it can be changed into a prime (90245213) 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, 410096 + ... + 410315.

It is an arithmetic number, because the mean of its divisors is an integer number (11075562).

Almost surely, 2^90245210 is an apocalyptic number.

90245210 is a deficient number, since it is larger than the sum of its proper divisors (86963782).

90245210 is a wasteful number, since it uses less digits than its factorization.

90245210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820429.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 90245210 is about 9499.7478913916. The cubic root of 90245210 is about 448.5471001277.

Adding to 90245210 its reverse (1254209), we get a palindrome (91499419).

The spelling of 90245210 in words is "ninety million, two hundred forty-five thousand, two hundred ten".