90429330 has 64 divisors (see below), whose sum is σ = 229340160. Its totient is φ = 22773696.

The previous prime is 90429329. The next prime is 90429347. The reversal of 90429330 is 3392409.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56481 + ... + 58059.

It is an arithmetic number, because the mean of its divisors is an integer number (3583440).

Almost surely, 2^90429330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90429330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114670080).

90429330 is an abundant number, since it is smaller than the sum of its proper divisors (138910830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90429330 is a wasteful number, since it uses less digits than its factorization.

90429330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 90429330 is about 9509.4337370845. The cubic root of 90429330 is about 448.8519376949.

The spelling of 90429330 in words is "ninety million, four hundred twenty-nine thousand, three hundred thirty".