90918302 has 4 divisors (see below), whose sum is σ = 136377456. Its totient is φ = 45459150.

The previous prime is 90918301. The next prime is 90918337. The reversal of 90918302 is 20381909.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×90918302² = 16532275277126408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90918301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22729574 + ... + 22729577.

It is an arithmetic number, because the mean of its divisors is an integer number (34094364).

Almost surely, 2^90918302 is an apocalyptic number.

90918302 is a deficient number, since it is larger than the sum of its proper divisors (45459154).

90918302 is a wasteful number, since it uses less digits than its factorization.

90918302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45459153.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 90918302 is about 9535.1089139034. The cubic root of 90918302 is about 449.6594987968.

The spelling of 90918302 in words is "ninety million, nine hundred eighteen thousand, three hundred two".