90301050 has 144 divisors (see below), whose sum is σ = 280874880. Its totient is φ = 20373120.

The previous prime is 90301009. The next prime is 90301061. The reversal of 90301050 is 5010309.

It is a super-2 number, since 2×90301050² = 16308559262205000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 343219 + ... + 343481.

It is an arithmetic number, because the mean of its divisors is an integer number (1950520).

Almost surely, 2^90301050 is an apocalyptic number.

90301050 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 90301050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140437440).

90301050 is an abundant number, since it is smaller than the sum of its proper divisors (190573830).

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

90301050 is a wasteful number, since it uses less digits than its factorization.

90301050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 90301050 is about 9502.6864622590. The cubic root of 90301050 is about 448.6395951786.

Adding to 90301050 its reverse (5010309), we get a palindrome (95311359).

The spelling of 90301050 in words is "ninety million, three hundred one thousand, fifty".