649962262 has 4 divisors (see below), whose sum is σ = 974943396. Its totient is φ = 324981130.

The previous prime is 649962253. The next prime is 649962301. The reversal of 649962262 is 262269946.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 262269946 = 2 ⋅131134973.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162490564 + ... + 162490567.

It is an arithmetic number, because the mean of its divisors is an integer number (243735849).

Almost surely, 2^649962262 is an apocalyptic number.

649962262 is a deficient number, since it is larger than the sum of its proper divisors (324981134).

649962262 is a wasteful number, since it uses less digits than its factorization.

649962262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324981133.

The product of its digits is 559872, while the sum is 46.

The square root of 649962262 is about 25494.3574541505. The cubic root of 649962262 is about 866.2223408465. Note that the first 3 decimals are identical.

The spelling of 649962262 in words is "six hundred forty-nine million, nine hundred sixty-two thousand, two hundred sixty-two".