90450850 has 48 divisors (see below), whose sum is σ = 194059008. Its totient is φ = 30723840.

The previous prime is 90450823. The next prime is 90450859. The reversal of 90450850 is 5805409.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90450859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38407 + ... + 40693.

It is an arithmetic number, because the mean of its divisors is an integer number (4042896).

Almost surely, 2^90450850 is an apocalyptic number.

90450850 is an abundant number, since it is smaller than the sum of its proper divisors (103608158).

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

90450850 is a wasteful number, since it uses less digits than its factorization.

90450850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419 (or 2414 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 90450850 is about 9510.5651777379. The cubic root of 90450850 is about 448.8875401835.

It can be divided in two parts, 904 and 50850, that multiplied together give a square (45968400 = 6780²).

The spelling of 90450850 in words is "ninety million, four hundred fifty thousand, eight hundred fifty".