90870902342 has 16 divisors (see below), whose sum is σ = 148865513472. Its totient is φ = 41258379720.

The previous prime is 90870902341. The next prime is 90870902347. The reversal of 90870902342 is 24320907809.

It is a junction number, because it is equal to n+sod(n) for n = 90870902293 and 90870902302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90870902341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2308838 + ... + 2347865.

It is an arithmetic number, because the mean of its divisors is an integer number (9304094592).

Almost surely, 2^90870902342 is an apocalyptic number.

90870902342 is a deficient number, since it is larger than the sum of its proper divisors (57994611130).

90870902342 is a wasteful number, since it uses less digits than its factorization.

90870902342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4657603.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 90870902342 in words is "ninety billion, eight hundred seventy million, nine hundred two thousand, three hundred forty-two".