8149402 has 4 divisors (see below), whose sum is σ = 12224106. Its totient is φ = 4074700.

The previous prime is 8149381. The next prime is 8149457. The reversal of 8149402 is 2049418.

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., 7778521 + 370881 = 2789^2 + 609^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2037349 + ... + 2037352.

Almost surely, 2^8149402 is an apocalyptic number.

8149402 is a deficient number, since it is larger than the sum of its proper divisors (4074704).

8149402 is a wasteful number, since it uses less digits than its factorization.

8149402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074703.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 8149402 is about 2854.7157476709. The cubic root of 8149402 is about 201.2373457573.

The spelling of 8149402 in words is "eight million, one hundred forty-nine thousand, four hundred two".