90428914 has 8 divisors (see below), whose sum is σ = 138798000. Its totient is φ = 44162916.

The previous prime is 90428911. The next prime is 90428941. The reversal of 90428914 is 41982409.

It is a happy number.

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 (90428911) 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, 525664 + ... + 525835.

It is an arithmetic number, because the mean of its divisors is an integer number (17349750).

Almost surely, 2^90428914 is an apocalyptic number.

90428914 is a deficient number, since it is larger than the sum of its proper divisors (48369086).

90428914 is a wasteful number, since it uses less digits than its factorization.

90428914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051544.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 90428914 is about 9509.4118640429. The cubic root of 90428914 is about 448.8512494127.

It can be divided in two parts, 9042 and 8914, that added together give a square (17956 = 134²).

The spelling of 90428914 in words is "ninety million, four hundred twenty-eight thousand, nine hundred fourteen".