49157429 has 4 divisors (see below), whose sum is σ = 49172940. Its totient is φ = 49141920.

The previous prime is 49157419. The next prime is 49157453. The reversal of 49157429 is 92475194.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10903204 + 38254225 = 3302^2 + 6185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49157429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49157419) 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, 1094 + ... + 9975.

It is an arithmetic number, because the mean of its divisors is an integer number (12293235).

Almost surely, 2^49157429 is an apocalyptic number.

It is an amenable number.

49157429 is a deficient number, since it is larger than the sum of its proper divisors (15511).

49157429 is a wasteful number, since it uses less digits than its factorization.

49157429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15510.

The product of its digits is 90720, while the sum is 41.

The square root of 49157429 is about 7011.2359110217. The cubic root of 49157429 is about 366.3220437821.

The spelling of 49157429 in words is "forty-nine million, one hundred fifty-seven thousand, four hundred twenty-nine".