64290650 has 12 divisors (see below), whose sum is σ = 119580702. Its totient is φ = 25716240.

The previous prime is 64290649. The next prime is 64290671. The reversal of 64290650 is 5609246.

It can be written as a sum of positive squares in 3 ways, for example, as 39778249 + 24512401 = 6307^2 + 4951^2 .

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 642857 + ... + 642956.

Almost surely, 2^64290650 is an apocalyptic number.

64290650 is a deficient number, since it is larger than the sum of its proper divisors (55290052).

64290650 is a wasteful number, since it uses less digits than its factorization.

64290650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285825 (or 1285820 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 64290650 is about 8018.1450473286. The cubic root of 64290650 is about 400.6046065003.

Adding to 64290650 its reverse (5609246), we get a palindrome (69899896).

It can be divided in two parts, 6 and 4290650, that multiplied together give a triangular number (25743900 = T₇₁₇₅).

The spelling of 64290650 in words is "sixty-four million, two hundred ninety thousand, six hundred fifty".