90258646 has 16 divisors (see below), whose sum is σ = 137064960. Its totient is φ = 44573760.

The previous prime is 90258631. The next prime is 90258653. The reversal of 90258646 is 64685209.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 90258599 and 90258608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67666 + ... + 68986.

It is an arithmetic number, because the mean of its divisors is an integer number (8566560).

Almost surely, 2^90258646 is an apocalyptic number.

90258646 is a deficient number, since it is larger than the sum of its proper divisors (46806314).

90258646 is a wasteful number, since it uses less digits than its factorization.

90258646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 90258646 is about 9500.4550417335. The cubic root of 90258646 is about 448.5693594062.

It can be divided in two parts, 9025 and 8646, that added together give a palindrome (17671).

The spelling of 90258646 in words is "ninety million, two hundred fifty-eight thousand, six hundred forty-six".