90140342 has 8 divisors (see below), whose sum is σ = 135513000. Its totient is φ = 44969344.

The previous prime is 90140339. The next prime is 90140359. The reversal of 90140342 is 24304109.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49292 + ... + 51087.

It is an arithmetic number, because the mean of its divisors is an integer number (16939125).

Almost surely, 2^90140342 is an apocalyptic number.

90140342 is a deficient number, since it is larger than the sum of its proper divisors (45372658).

90140342 is a wasteful number, since it uses less digits than its factorization.

90140342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100830.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 90140342 is about 9494.2267720968. The cubic root of 90140342 is about 448.3732904630.

The spelling of 90140342 in words is "ninety million, one hundred forty thousand, three hundred forty-two".