90249034 has 4 divisors (see below), whose sum is σ = 135373554. Its totient is φ = 45124516.

The previous prime is 90249011. The next prime is 90249037. The reversal of 90249034 is 43094209.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43094209 = 673 ⋅64033.

It can be written as a sum of positive squares in only one way, i.e., 68112009 + 22137025 = 8253^2 + 4705^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 90248987 and 90249005.

It is not an unprimeable number, because it can be changed into a prime (90249037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22562257 + ... + 22562260.

Almost surely, 2^90249034 is an apocalyptic number.

90249034 is a deficient number, since it is larger than the sum of its proper divisors (45124520).

90249034 is a wasteful number, since it uses less digits than its factorization.

90249034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45124519.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 90249034 is about 9499.9491577587. The cubic root of 90249034 is about 448.5534355328.

The spelling of 90249034 in words is "ninety million, two hundred forty-nine thousand, thirty-four".