90057342 has 8 divisors (see below), whose sum is σ = 180114696. Its totient is φ = 30019112.

The previous prime is 90057307. The next prime is 90057343. The reversal of 90057342 is 24375009.

It is a sphenic number, since it is the product of 3 distinct primes.

90057342 is an admirable number.

It is a super-2 number, since 2×90057342² = 16220649696209928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90057343) 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, 7504773 + ... + 7504784.

It is an arithmetic number, because the mean of its divisors is an integer number (22514337).

Almost surely, 2^90057342 is an apocalyptic number.

90057342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90057342 is a wasteful number, since it uses less digits than its factorization.

90057342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15009562.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 90057342 is about 9489.8546880340. The cubic root of 90057342 is about 448.2356295279.

The spelling of 90057342 in words is "ninety million, fifty-seven thousand, three hundred forty-two".