49130402 has 4 divisors (see below), whose sum is σ = 73695606. Its totient is φ = 24565200.

The previous prime is 49130401. The next prime is 49130407. The reversal of 49130402 is 20403194.

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

It can be written as a sum of positive squares in only one way, i.e., 30459361 + 18671041 = 5519^2 + 4321^2 .

It is not an unprimeable number, because it can be changed into a prime (49130401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12282599 + ... + 12282602.

Almost surely, 2^49130402 is an apocalyptic number.

49130402 is a deficient number, since it is larger than the sum of its proper divisors (24565204).

49130402 is a wasteful number, since it uses less digits than its factorization.

49130402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24565203.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 49130402 is about 7009.3082397623. The cubic root of 49130402 is about 366.2548962447.

Adding to 49130402 its reverse (20403194), we get a palindrome (69533596).

The spelling of 49130402 in words is "forty-nine million, one hundred thirty thousand, four hundred two".