69440634 has 48 divisors (see below), whose sum is σ = 160864704. Its totient is φ = 21595200.

The previous prime is 69440617. The next prime is 69440641. The reversal of 69440634 is 43604496.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14929 + ... + 19019.

It is an arithmetic number, because the mean of its divisors is an integer number (3351348).

Almost surely, 2^69440634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69440634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80432352).

69440634 is an abundant number, since it is smaller than the sum of its proper divisors (91424070).

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

69440634 is a wasteful number, since it uses less digits than its factorization.

69440634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4163 (or 4160 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 69440634 is about 8333.1047035304. The cubic root of 69440634 is about 411.0278276930.

It can be divided in two parts, 694 and 40634, that added together give a triangular number (41328 = T₂₈₇).

The spelling of 69440634 in words is "sixty-nine million, four hundred forty thousand, six hundred thirty-four".