90146434 has 16 divisors (see below), whose sum is σ = 154824768. Its totient is φ = 38562192.

The previous prime is 90146429. The next prime is 90146437. The reversal of 90146434 is 43464109.

It is a junction number, because it is equal to n+sod(n) for n = 90146396 and 90146405.

It is not an unprimeable number, because it can be changed into a prime (90146437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2164 + ... + 13600.

It is an arithmetic number, because the mean of its divisors is an integer number (9676548).

Almost surely, 2^90146434 is an apocalyptic number.

90146434 is a deficient number, since it is larger than the sum of its proper divisors (64678334).

90146434 is a wasteful number, since it uses less digits than its factorization.

90146434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12009.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 90146434 is about 9494.5475932242. The cubic root of 90146434 is about 448.3833911146.

The spelling of 90146434 in words is "ninety million, one hundred forty-six thousand, four hundred thirty-four".