8390629442 has 32 divisors (see below), whose sum is σ = 13630256640. Its totient is φ = 3850896960.

The previous prime is 8390629441. The next prime is 8390629451. The reversal of 8390629442 is 2449260938.

It is not an unprimeable number, because it can be changed into a prime (8390629441) 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, 7104092 + ... + 7105272.

It is an arithmetic number, because the mean of its divisors is an integer number (425945520).

Almost surely, 2^8390629442 is an apocalyptic number.

8390629442 is a deficient number, since it is larger than the sum of its proper divisors (5239627198).

8390629442 is a wasteful number, since it uses less digits than its factorization.

8390629442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498.

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 8390629442 is about 91600.3790494341. The cubic root of 8390629442 is about 2032.0365434107.

The spelling of 8390629442 in words is "eight billion, three hundred ninety million, six hundred twenty-nine thousand, four hundred forty-two".