64046240 has 48 divisors (see below), whose sum is σ = 151788168. Its totient is φ = 25537536.

The previous prime is 64046209. The next prime is 64046249. The reversal of 64046240 is 4264046.

It can be written as a sum of positive squares in 4 ways, for example, as 20539024 + 43507216 = 4532^2 + 6596^2 .

It is not an unprimeable number, because it can be changed into a prime (64046249) 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, 97754 + ... + 98406.

Almost surely, 2^64046240 is an apocalyptic number.

It is an amenable number.

64046240 is an abundant number, since it is smaller than the sum of its proper divisors (87741928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64046240 is a wasteful number, since it uses less digits than its factorization.

64046240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281 (or 1273 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 64046240 is about 8002.8894781822. The cubic root of 64046240 is about 400.0963101424.

It can be divided in two parts, 640 and 46240, that multiplied together give a square (29593600 = 5440²).

The spelling of 64046240 in words is "sixty-four million, forty-six thousand, two hundred forty".