740172629 has 4 divisors (see below), whose sum is σ = 845911584. Its totient is φ = 634433676.

The previous prime is 740172583. The next prime is 740172649. The reversal of 740172629 is 926271047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 740172629 - 2²⁰ = 739124053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 740172592 and 740172601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740172649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52869467 + ... + 52869480.

It is an arithmetic number, because the mean of its divisors is an integer number (211477896).

Almost surely, 2^740172629 is an apocalyptic number.

It is an amenable number.

740172629 is a deficient number, since it is larger than the sum of its proper divisors (105738955).

740172629 is a wasteful number, since it uses less digits than its factorization.

740172629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105738954.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 740172629 is about 27206.1138165670. The cubic root of 740172629 is about 904.5744991600.

The spelling of 740172629 in words is "seven hundred forty million, one hundred seventy-two thousand, six hundred twenty-nine".