90358742 has 4 divisors (see below), whose sum is σ = 135538116. Its totient is φ = 45179370.

The previous prime is 90358733. The next prime is 90358759. The reversal of 90358742 is 24785309.

90358742 is nontrivially palindromic in base 9.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24785309 = 47 ⋅527347.

It is a junction number, because it is equal to n+sod(n) for n = 90358696 and 90358705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22589684 + ... + 22589687.

It is an arithmetic number, because the mean of its divisors is an integer number (33884529).

Almost surely, 2^90358742 is an apocalyptic number.

90358742 is a deficient number, since it is larger than the sum of its proper divisors (45179374).

90358742 is a wasteful number, since it uses less digits than its factorization.

90358742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45179373.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 90358742 is about 9505.7215402093. The cubic root of 90358742 is about 448.7351178973.

The spelling of 90358742 in words is "ninety million, three hundred fifty-eight thousand, seven hundred forty-two".