90452738 has 8 divisors (see below), whose sum is σ = 135781500. Its totient is φ = 45192240.

The previous prime is 90452737. The next prime is 90452741. The reversal of 90452738 is 83725409.

It can be written as a sum of positive squares in 2 ways, for example, as 88416409 + 2036329 = 9403^2 + 1427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (90452737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13613 + ... + 19136.

Almost surely, 2^90452738 is an apocalyptic number.

90452738 is a deficient number, since it is larger than the sum of its proper divisors (45328762).

90452738 is a wasteful number, since it uses less digits than its factorization.

90452738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34132.

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

The square root of 90452738 is about 9510.6644352537. The cubic root of 90452738 is about 448.8906634038.

The spelling of 90452738 in words is "ninety million, four hundred fifty-two thousand, seven hundred thirty-eight".