90334540 has 12 divisors (see below), whose sum is σ = 189702576. Its totient is φ = 36133808.

The previous prime is 90334523. The next prime is 90334553. The reversal of 90334540 is 4543309.

It is a junction number, because it is equal to n+sod(n) for n = 90334499 and 90334508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2258344 + ... + 2258383.

It is an arithmetic number, because the mean of its divisors is an integer number (15808548).

Almost surely, 2^90334540 is an apocalyptic number.

It is an amenable number.

90334540 is an abundant number, since it is smaller than the sum of its proper divisors (99368036).

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

90334540 is a wasteful number, since it uses less digits than its factorization.

90334540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4516736 (or 4516734 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 90334540 is about 9504.4484321816. The cubic root of 90334540 is about 448.6950507279.

Adding to 90334540 its reverse (4543309), we get a palindrome (94877849).

The spelling of 90334540 in words is "ninety million, three hundred thirty-four thousand, five hundred forty".