69799140 has 72 divisors (see below), whose sum is σ = 214152120. Its totient is φ = 18399744.

The previous prime is 69799139. The next prime is 69799151. The reversal of 69799140 is 4199796.

It can be written as a sum of positive squares in 4 ways, for example, as 18045504 + 51753636 = 4248^2 + 7194^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 13842 + ... + 18198.

It is an arithmetic number, because the mean of its divisors is an integer number (2974335).

Almost surely, 2^69799140 is an apocalyptic number.

69799140 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 69799140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107076060).

69799140 is an abundant number, since it is smaller than the sum of its proper divisors (144352980).

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

69799140 is a wasteful number, since it uses less digits than its factorization.

69799140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461 (or 4456 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 69799140 is about 8354.5879611145. The cubic root of 69799140 is about 411.7339612179.

The spelling of 69799140 in words is "sixty-nine million, seven hundred ninety-nine thousand, one hundred forty".