649694342 has 32 divisors (see below), whose sum is σ = 1099699200. Its totient is φ = 285199200.

The previous prime is 649694293. The next prime is 649694351. The reversal of 649694342 is 243496946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 585284 + ... + 586392.

It is an arithmetic number, because the mean of its divisors is an integer number (34365600).

Almost surely, 2^649694342 is an apocalyptic number.

649694342 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

649694342 is a deficient number, since it is larger than the sum of its proper divisors (450004858).

649694342 is a wasteful number, since it uses less digits than its factorization.

649694342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012.

The product of its digits is 1119744, while the sum is 47.

The square root of 649694342 is about 25489.1024165230. The cubic root of 649694342 is about 866.1033030712.

The spelling of 649694342 in words is "six hundred forty-nine million, six hundred ninety-four thousand, three hundred forty-two".