64952040 has 32 divisors (see below), whose sum is σ = 194856480. Its totient is φ = 17320512.

The previous prime is 64952029. The next prime is 64952071. The reversal of 64952040 is 4025946.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 64951989 and 64952007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270514 + ... + 270753.

It is an arithmetic number, because the mean of its divisors is an integer number (6089265).

Almost surely, 2^64952040 is an apocalyptic number.

64952040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64952040 is an abundant number, since it is smaller than the sum of its proper divisors (129904440).

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

64952040 is a wasteful number, since it uses less digits than its factorization.

64952040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541281 (or 541277 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 64952040 is about 8059.2828465069. The cubic root of 64952040 is about 401.9736622927.

Adding to 64952040 its reverse (4025946), we get a palindrome (68977986).

The spelling of 64952040 in words is "sixty-four million, nine hundred fifty-two thousand, forty".