90394029 has 16 divisors (see below), whose sum is σ = 146091840. Its totient is φ = 54784080.

The previous prime is 90394013. The next prime is 90394037. The reversal of 90394029 is 92049309.

It is not a de Polignac number, because 90394029 - 2⁴ = 90394013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90393984 and 90394002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90394079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151882 + ... + 152475.

It is an arithmetic number, because the mean of its divisors is an integer number (9130740).

Almost surely, 2^90394029 is an apocalyptic number.

90394029 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

90394029 is a deficient number, since it is larger than the sum of its proper divisors (55697811).

90394029 is a wasteful number, since it uses less digits than its factorization.

90394029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304377 (or 304371 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 90394029 is about 9507.5774516961. The cubic root of 90394029 is about 448.7935238134.

The spelling of 90394029 in words is "ninety million, three hundred ninety-four thousand, twenty-nine".