601138668 has 48 divisors (see below), whose sum is σ = 1525549536. Its totient is φ = 183129600.

The previous prime is 601138661. The next prime is 601138691. The reversal of 601138668 is 866831106.

It is a super-2 number, since 2×601138668² = 722735396329628448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (601138661) 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, 3321 + ... + 34832.

It is an arithmetic number, because the mean of its divisors is an integer number (31782282).

Almost surely, 2^601138668 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 601138668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (762774768).

601138668 is an abundant number, since it is smaller than the sum of its proper divisors (924410868).

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

601138668 is a wasteful number, since it uses less digits than its factorization.

601138668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38274 (or 38272 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 601138668 is about 24518.1293739959. The cubic root of 601138668 is about 843.9658780182.

The spelling of 601138668 in words is "six hundred one million, one hundred thirty-eight thousand, six hundred sixty-eight".