90481356 has 144 divisors (see below), whose sum is σ = 278014464. Its totient is φ = 24254208.

The previous prime is 90481351. The next prime is 90481373. The reversal of 90481356 is 65318409.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 90481356.

It is not an unprimeable number, because it can be changed into a prime (90481351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 388216 + ... + 388448.

It is an arithmetic number, because the mean of its divisors is an integer number (1930656).

Almost surely, 2^90481356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90481356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139007232).

90481356 is an abundant number, since it is smaller than the sum of its proper divisors (187533108).

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

90481356 is a wasteful number, since it uses less digits than its factorization.

90481356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 90481356 is about 9512.1688378624. The cubic root of 90481356 is about 448.9379993523.

It can be divided in two parts, 9048 and 1356, that added together give a square (10404 = 102²).

The spelling of 90481356 in words is "ninety million, four hundred eighty-one thousand, three hundred fifty-six".