90259412 has 12 divisors (see below), whose sum is σ = 159403860. Its totient is φ = 44715456.

The previous prime is 90259399. The next prime is 90259417. The reversal of 90259412 is 21495209.

It can be written as a sum of positive squares in 2 ways, for example, as 40500496 + 49758916 = 6364^2 + 7054^2 .

It is a super-2 number, since 2×90259412² = 16293522909171488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90259417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103073 + ... + 103944.

It is an arithmetic number, because the mean of its divisors is an integer number (13283655).

Almost surely, 2^90259412 is an apocalyptic number.

It is an amenable number.

90259412 is a deficient number, since it is larger than the sum of its proper divisors (69144448).

90259412 is a wasteful number, since it uses less digits than its factorization.

90259412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207130 (or 207128 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 90259412 is about 9500.4953555065. The cubic root of 90259412 is about 448.5706283637.

The spelling of 90259412 in words is "ninety million, two hundred fifty-nine thousand, four hundred twelve".