734142639 has 16 divisors (see below), whose sum is σ = 993320064. Its totient is φ = 482244000.

The previous prime is 734142613. The next prime is 734142649. The reversal of 734142639 is 936241437.

It is not a de Polignac number, because 734142639 - 2²³ = 725754031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 734142597 and 734142606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (734142649) 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, 58192 + ... + 69674.

It is an arithmetic number, because the mean of its divisors is an integer number (62082504).

Almost surely, 2^734142639 is an apocalyptic number.

734142639 is a deficient number, since it is larger than the sum of its proper divisors (259177425).

734142639 is a wasteful number, since it uses less digits than its factorization.

734142639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11798.

The product of its digits is 108864, while the sum is 39.

The square root of 734142639 is about 27095.0666911894. The cubic root of 734142639 is about 902.1113553376. Note that the first 3 decimals are identical.

The spelling of 734142639 in words is "seven hundred thirty-four million, one hundred forty-two thousand, six hundred thirty-nine".