13842434390 has 16 divisors (see below), whose sum is σ = 24995992608. Its totient is φ = 5519282496.

The previous prime is 13842434387. The next prime is 13842434393. The reversal of 13842434390 is 9343424831.

It is an interprime number because it is at equal distance from previous prime (13842434387) and next prime (13842434393).

It is a super-2 number, since 2×13842434390² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13842434393) 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, 2208122 + ... + 2214381.

It is an arithmetic number, because the mean of its divisors is an integer number (1562249538).

Almost surely, 2^13842434390 is an apocalyptic number.

13842434390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13842434390 is a deficient number, since it is larger than the sum of its proper divisors (11153558218).

13842434390 is a wasteful number, since it uses less digits than its factorization.

13842434390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422823.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 13842434390 in words is "thirteen billion, eight hundred forty-two million, four hundred thirty-four thousand, three hundred ninety".