64150944 has 96 divisors (see below), whose sum is σ = 197878464. Its totient is φ = 17940480.

The previous prime is 64150943. The next prime is 64150951. The reversal of 64150944 is 44905146.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×64150944² = 8230687232182272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (64150943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11392 + ... + 16064.

It is an arithmetic number, because the mean of its divisors is an integer number (2061234).

Almost surely, 2^64150944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64150944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98939232).

64150944 is an abundant number, since it is smaller than the sum of its proper divisors (133727520).

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

64150944 is a wasteful number, since it uses less digits than its factorization.

64150944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4710 (or 4702 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 64150944 is about 8009.4284440277. The cubic root of 64150944 is about 400.3142197669.

The spelling of 64150944 in words is "sixty-four million, one hundred fifty thousand, nine hundred forty-four".