64496138 has 16 divisors (see below), whose sum is σ = 110752704. Its totient is φ = 27594240.

The previous prime is 64496137. The next prime is 64496167. The reversal of 64496138 is 83169446.

It is a junction number, because it is equal to n+sod(n) for n = 64496095 and 64496104.

It is not an unprimeable number, because it can be changed into a prime (64496137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5381 + ... + 12567.

It is an arithmetic number, because the mean of its divisors is an integer number (6922044).

Almost surely, 2^64496138 is an apocalyptic number.

64496138 is a deficient number, since it is larger than the sum of its proper divisors (46256566).

64496138 is a wasteful number, since it uses less digits than its factorization.

64496138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7837.

The product of its digits is 124416, while the sum is 41.

The square root of 64496138 is about 8030.9487608875. The cubic root of 64496138 is about 401.0309613472.

The spelling of 64496138 in words is "sixty-four million, four hundred ninety-six thousand, one hundred thirty-eight".