695641440 has 384 divisors, whose sum is σ = 2548288512. Its totient is φ = 158146560.

The previous prime is 695641423. The next prime is 695641481. The reversal of 695641440 is 44146596.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5310175 + ... + 5310305.

It is an arithmetic number, because the mean of its divisors is an integer number (6636168).

Almost surely, 2^695641440 is an apocalyptic number.

695641440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 695641440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274144256).

695641440 is an abundant number, since it is smaller than the sum of its proper divisors (1852647072).

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

695641440 is a wasteful number, since it uses less digits than its factorization.

695641440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 695641440 is about 26375.0154502324. The cubic root of 695641440 is about 886.0573146311.

The spelling of 695641440 in words is "six hundred ninety-five million, six hundred forty-one thousand, four hundred forty".